题目内容
（请给出正确答案）
[主观题]
How long has Tim been in Australia？
A．six months
B．six weeks
C．sixty months
D．sixteen months
提问人：网友lixin080108
发布时间：2022-01-07
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A.is he
B.has he been
C.has he
D.was he
题目内容
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更多“How long has Tim been in Austr…”相关的问题
第2题
How long will Tim stay in London？A．A couple of months.B．One year.C．Several weeks.
How long will Tim stay in London？
A．A couple of months.
B．One year.
C．Several weeks.
第3题
Most consumers are familiar with bar codes. Those black-and-white stripes appear on almost
every product purchased. Often the codes are scanned at the checkout counter, causing the item name and its price to appear on (141) the cash register screen and the receipt. This gives a record to the consumer and helps store management monitor inventory.
点击查看答案
Many delivery services use bar codes to track the progress of each envelope, package, or crate in transit. Every item (142) a bar code, which is read at a number of points from the moment it leaves the sender's hands to the moment the recipient accepts the delivery.
An interesting use for the bar code has been developed by a scientist who works with bees. The scientist attached bar codes to the backs of individual bees in order to (143) them and to follow their movements. Laser scanners at the entrance of the hive read the bar codes to monitor how long each bee had been gone from the hive. By keeping (144) of individual bees, scientists hope to learn more about honey production. Knowing how far bees travel to gather pollen and how many trips they make back to the hive could eventually help beekeepers predict honey yields.
(41)
A．so
B．either
C．each
D．both
第4题
I ____________（简直不敢相信)that he has learned how to work a computer in such a short tim
I ____________(简直不敢相信)that he has learned how to work a computer in such a short time.
第5题
Which of the following description about the Conservative party is NOT true？A.It ha
A.It has been in power for an unusually long period of tim
B.It prefers policies that protect individual ’s rights.
C.It receives a lot of the funding from big companies.
D.It is known as a party of high taxation levels.
第6题
Many animals use some kinds of "language".They use signals (信号) and the signals have meanings.For example,（1）a bee has found some food,it goes back to its home.It is difficult for a bee to tell（2）bees where the food is by speaking to them,but it can do a ltte dancing.This tells the bees where the food is and how far away it is.Some animals show how they feel by making sounds.It is not difficult to tell if a dog is angry because it barks.Birds makeseveral different sounds and（3）has its meaning.Sometimes we humans make sounds in the same way.We make sounds like "Oh!" or "Ouch!" to show how we feel about something or we（4） something on our feet.We humans have languages.We have words.These words have meanings.We are able to give each other information,to tell other people what we think or feel.By writing downwords,we can remember what has happened or 5 messages to people far away.
1.A.since
B.why
C.because
D.when
2.A.the other
B.another
C.others
D.each other
3.A.some
B.each
C.every
D.all
4.A.set
B.fall
C.put
D.drop
5.A.get
B.bring
C.send
D.catch
第7题
The switch in the circuit show in figure has bee in position a for a long time. At t=0 the
switch is moved to position b. a) what is the initial of vC？ b) what is the final vlaue of vC ？ c) what is the time constant of the circuit when the switch is in position b ？ d) what is the expression for vC(t) when t＞0 ？ e) what is the expression for i(t) when t＞0 ？ f) plot vC(t) and i(t) versus t.
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第8题
Bees are very small animals which fly through the air to look for flowers【B1】. When a bee【
B2】some food, it re turns to the hive and dances. The dance is the way a bee【B3】to other bees that is has found food.
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Bees do two kinds of【B4】to tell other bees of their【B5】of food. First, there is a round dance.【B6】this dance, the bee moves in a【B7】inside the hive. The round dance is used【B8】the food is close by. The food must not be more than ten meters【B9】If a bee comes back and dance a round dance, other bees know they must go out and look nearby for food. The bees also【B10】the bee that has found the food. The smell tells them what kind of flower to【B11】After watching the round dance and smelling the bee【B12】has found the food, the other bees can find the other source.
A second kind of dance【B13】by the bee is a tail-wagging dance. In this dance, the bee wiggles the【B14】of its body as it moves in a【B15】line. The tail-wagging dance is used when the food is far away. The food must be【B16】ten meters away. The bees know from the speed of the tail-wagging dance just how far away the food source is. The line the bee dances on shows the direction that the bees【B17】fly into find the food. In the tail-wagging dance, the bees also smell the bee【B18】has found the food. The smell tells them what kind of flowers to look for. After watching the tail-wagging dance and smelling the bee that has found the food, the other bees know【B19】things. They know how far【B20】fly, what direction to fly in, and what kind of flowers to look for.
【B1】
A．for food
B．for eating
C．to eat
D．for eating food
第9题
Many animals use some kinds of "language".They use signals (信号) and the signals have meanings.For example,(1) a bee has foundsome food,it goes back to its home.It is difficult for a bee to tell (2) bees where the food is by speaking to them,but it can do a lttledancing.This tells the bees where the food is and how far away it is.Some animals show how they feel by making sounds.It is notdifficult to tell if a dog is angry because it barks.Birds make several different sounds and (3) has its meaning.Sometimes we humansmake sounds in the same way.We make sounds like "Oh!" or "Ouch!" to show how we feel about something or we (4) something onour feet.We humans have languages.We have words.These words have meanings.We are able to give each other information,to tellother people what we think or feel.By writing down words,we can remember what has happened or (5) messages to people far away.
(1)A、since
B、because
C、why
D、when
(2)A、others
B、eachother
C、theoher
D、another
(3)A、all
B、every
C、cach
D、some
(4)A、fall
B、set
C、drop
D、put
(5)A、get
B、send
C、catch
D、bring
第10题
听力原文：Bees are very small animals which fly through the air to look for flowers for foo
听力原文： Bees are very small animals which fly through the air to look for flowers for food. Bees have been studied by Karl von Frisch who won a Nobel Prize for his work. He studied bees' activities when they returned to their home called a hive. When a bee found some food, it returned to the hive and danced. The dance was the way the bee communicated to other bees the fact that it had found food.
Bees do two kinds of dances to tell other bees of their discovery of food. First, there is a round dance. In this dance, the bee moves in a circle inside the hive. The round dance is used when food is close by. The food must not be more than ten meters away. If a bee comes back and does a round dance, other bees know they must go out and look nearby for food. The bees also smell the bee that has found the food. The smell tells them what kind of flower to look for. After watching the round dance and smelling the bee that has found the food, the other bees can find the food source.
A second kind of dance done by the bees is a tail-wagging dance. In this dance, the bee wiggles the end of its body as it moves in a straight line. The tail-wagging dance is used when the food is far away. The food must be more than ten meters away. The bees know from the speed of the tail-wagging dance just how far away the food source is. The line the bee dances on shows the direction that the bees must fly in to find the food. In the tail-wagging dance, the bees also smell the bee that has found the food. The smell tells them what kind of flower to look for. After watching the tail-wagging dance and smelling the bee that has found the food, the other bees know three things. They know how far to fly, what direction to fly in, and what kinds of flowers to look for.
(30)
A．The smell of the food.
B．The quality of the food.
C．The distance of the food.
D．The amount of the food.
