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[单选题]

It is essential that these papers ___________ in time.A. are sentB. be sentC. will be s

A. are sent

B. be sent

C. will be sent

D. sent

答案
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更多“It is essential that these papers ___________ in time.A. are sentB. be sentC. will be s”相关的问题

第1题

.Waterandairare_______tohumanbeings.Wecannotlivewithoutthem.

A.harbour

B.function

C.definite

D.essential

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第2题

It is essential to be on friendly___with neighbors.

A.connection

B.association

C.terms

D.relations

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第3题

Something that is indispensable is:()

A.essential

B.scary

C.obvious

D.creative

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第4题

It’s essential that a photographer () first to use the equipment.
A.must learn

B.learn

C.has to learn

D.would learn

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第5题

It is essential we _____ to decide whether television is a blessing or a curse.
A.must try

B.try

C.have tried

D.are trying

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第6题

The last paragraph indicates that______.A.career coach is essential to job seekersB.a coll

The last paragraph indicates that______.

A.career coach is essential to job seekers

B.a college student can become a star performer

C.a salesman can be successful through hard work

D.career advisers can help people achieve their goals

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第7题

Sometimes, but not often, something () has been produced unexpectedly by good luck.

A. favorable

B. splendid

C. essential

D. worthwhile

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第8题

【B8】A.quite essentialB.very importrantC.not necessaryD.only secondary

【B8】

A.quite essential

B.very importrant

C.not necessary

D.only secondary

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第9题

What could be said about the adrenalin?A.It is secreted by the kidneys into the bloodstrea

What could be said about the adrenalin?

A.It is secreted by the kidneys into the bloodstream.

B.It is hormone that prepares the body for emergencies.

C.It is the only useful hormone produced in the body.

D.It is essential to sustain life.

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第10题

Before adhesion can take place between liquid and solid,it is essential that the liquid su
rface()

A.provides some mechanical interlocking with the solid

B.exhibits a large contact angle with the solid

C.enters into some form. ofchemieal reaction with the solid

D.exhibits a small contact angle with the solid

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第11题

Which of the following statements is not true according to the passage ______.A.accuracy i

Which of the following statements is not true according to the passage ______.

A.accuracy in speed measurement is essential to spaceships

B.the speeds of space vehicles will vary

C.inaccuracies in measurement could cause accidents in space missions

D.a bump could affect the preciseness of the laser-doppler radar

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