Profitability is the ability of the firm to generate earnings.

A、intellectually

B、physically

C、emotionally

D、psychologically

A、diet

B、injure

C、injury

D、factor

A、Selling points

B、Technical feasibility

C、Profitability

D、Market viability

根据下列材料回答下列各 题。 The idea of a fishBeing able to generate electricity strong enough to light lampBulbs—oreven to mn a small electric motoris almost unbelievable，but several kinds of fish are able todo this．Even more strangely。this curious power hasBeen acquired inDifferent waysBy fishBe。longing to veryDifferent families． Perhaps theBest known are the electric rays，or torpedoes(电鱼)，of which several kindslive in warm seas,They posses on each side of the head，behind the eyes，a large organ consis—ting of a number of hexagonal shaped cells rather like a honeycomb．The cells are filled with ajeUy—like substance，and contain a series of flat electric plates．One side，the negative side，ofeach plate．is supplied with very fine nerves，connected with a main nerve coming from a specialpart of theBrain．Current passes from the upper，positive side of the organDownwards to thenegative，lower side．Generally it is necessary to touch the fish in two places，completing the cir-cuit，in order to receive a shock． The strength of this shockDepends on the size of the fish，but newlyBorn ones only about5 centimeters across canBe made to light theBulb of a pocket flashlight for a few moments， while a fully grown torpedo gives a shock capable of knocking a manDown，and，if suitablewires are connected，will operate a small electric motor for several minutes． Another famous example is the electriceel．This fish gives an even more poweIful shock．The system i8Different from that of the torped。in that the electric plates run longitudinally(纵向)and ale supplied with nerves from the spinal(脊骨)cord．Consequefitly，the current passesalong the fish from head to tail．The electric or gans of these fish are really altered muscles andlike all muscles are apt(1ikely)to tire，so they are not able to produce electricity for very long．The power of producing electricity may serve these flshBom forDefence and attack． （ ）It canBe seen from the passage that__________．

A.the torpedo’s electric ceils have a shape with six sides

B.some fish can produce enough electricity toDrive a number of electric motors

C.the current travels in an upwardDirection from the positive side to negative sidein torpedo’s electric cells

D.the capacity to generate electricity is theDistinctive acteristic of the fish

Nuclear power is a method used to generate electricity in Canada. Canada has played an important role in the development of nuclear power technology. In the 1950s, Canadian scientists developed the CADU reactor. The reactor is now used in three Canadian provinces and number of other countries. Atomic Energy of Canada Limited (AECL) established its first nuclear power station division in Toronto in 1958. their job was to create a plan for a big nuclear power station. In 1959, a nine-person team of engineers and scientists designed the first nuclear power station in Canada. Construction of the station began in 1960 at DouglasPoint on OntarioChalkRiver. By 1967, the station was producing power into the Ontario power system. In 1994, 60 percent of Ontario power came from the province ’s 20 nuclear reators. Quebec and New Brunswick are the only other provinces that use nuclear power. Other countries in the world also use the CANDU, and more are being built. AECL sold one CANDU to Argentina in 1973 and one to South Korea in 1976, where is now installing three more CANDUs, which should be running by 1999. Two more CANDU reactors are also being installed in Romania. By creating the CANDU reactor, Canadian scientists have made a significant contribution to the world nuclear technology. AECL says it is the safety features and efficient design of the CANDU that have attracted other countries to use the Canadian-made reactor.

1).Which statement is TRUE according to the passage? ( )

A、The first nuclear power station was founded in 1958.

B、In Canada, only in Quebec that nuclear power is use

C、Many people in Canada are against nuclear power.

D、Canadian scientist developed the CANDU reactor in 1950’s.

2).Which of the following does this passage discuss? ( )

A、Describe the benefits of nuclear power.

B、Describe the dangers of nuclear power.

C、The definition of nuclear power.

D、The increase of the use of nuclear power in Ontario

3).Besides Canada, which countries use the CANDU reactor? ( )

A、Argentina

B、South Korea

C、Romania

D、All of the above

4).The first nuclear power station was established in Canada in( )

A、1960

B、1658

C、1967

D、1959

5).Why is Canadian-made nuclear reactor so popular? ( )

A、Because it is cheap

B、Because it is safe

C、Because it is efficient

D、Both B and C

A、Wéi jīn 围巾

B、zhīshì dànɡāo 芝士蛋糕

C、yǔrónɡfú hé kùzi 羽绒服和裤子

D、qípáo 旗袍

A、cash

B、marketable securities

C、receivables

D、investments