题目内容
（请给出正确答案）
How should the lifeboat sea painter be rigged？
A.Spliced into the ring on the stem post
B.Secured by a toggle around the outboard side of a forward thwart
C.Secured to the inboard side of a forward thwart and led inboard of the falls
D.Secured by a toggle to the stem post and led outboard of the falls
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更多“How should the lifeboat sea pa…”相关的问题
What is an Advance Directive？
A．A decision made by a doctor on how to end a patient's life
B．A hospital document on how to treat a terminally iii patient.
C．A wish made by a patient on how he will be medically treated.
D．A law that prohibits mercy killing.
A.person, life
B.people, lives
C.peoples, lives
Abandoned ships damage the ecosystem(生态系统）long after they‘ve sunk. They produce toxic chemicals harming or destroying sea life and, by entering the food chain, the chemicals are finally digested by humans. Sometimes they help the growth of new sea life that threatens the present local ecosystem. On Palmyra Atoll, for example, a ‘population explosion’ of corallimorph, an aggressive creature similar to coral, killed almost all the coral growing around a fishing boat that sank in 1991. The corallimorph were probably attracted to the leaching iron produced by the abandoned boat, growing fast and threatening other sea life on the reef.
Of course, there are governmental policies to prevent people from abandoning boats and ships. State laws fine (罚款) and sometimes jail those irresponsible ship owners. However, there’s a big financial problem regarding retrieving(回收）and recycling sunken ship: it takes owners on average $5,000 to $10,000 to retrieve a 40-foot yacht, while the fines for abandonment are much lower - only $100. Besides, definitions of ‘abandonment’ are quite different among states, which means that ship owners can sometimes sink boats and get off the responsibility. Meanwhile, federal law deals with only pollution caused by ships, not with ship abandonment itself.
The environmental impact of undersea boats and ships can’t always be seen easily from the shore, says Helton. It would help if owners of small fishing boats as well as big ships could keep in mind that ‘ when a boat or ship is lost, it’s not gone.
1.The main idea of the passage is（）.
A、poisonous chemicals‘ influences on sea life
B、policies of retrieving abandoned ships
C、how corallimorph threatens coral
D、the sunken ships and its trouble
2. According to the passage, abandoned ships damage the ecosystem in these ways EXCEPT（）.
A、producing toxic chemicals
B、entering the food chain
C、helping corallimorph grow
D、poisoning the fishing boat
3.The example of corallimorph is to show how abandoned ships（）.
A、produce toxic chemicals which harm sea life
B、foster new sea life threatening the ecosystem
C、are protected under governmental policies
D、are retrieved and recycled in cheaper ways
4.The third paragraph implies that（）.
A、The fact that sunk ships can never be repaired.
B、There are no financial problems of retrieving sunken ships.
C、It doesn’t matter if we don’ t have a common definition of ‘abandonment’.
D、Federal laws concerned only with pollution.
5.The Helton‘ s attitude to lost ships is（）.
A、indifferent
B、disapproving
C、supportive
D、worried
A.close to life
B.unnatural
C.classical
![[图] In business, you should be able to how your c.](http://static.jiandati.com/187728a-chaoxing2016-1101135.png)
In business, you should be able to how your competitors will act.
How does Beth say Jack should feel？
A．Worried
B．Happy
C．Excited
D．Uncertain
Children should be taught how to ___________ (behavior) themselves.
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