At a standard lumber mill, the first grading choice for softwood is the ______. A. Factory Class

第1题

This selection centers on______.A．the life span of treesB．the age of redwoodsC．making tree

This selection centers on______.

A．the life span of trees

B．the age of redwoods

C．making trees grow quickly

D．cutting trees for lumber

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第2题

A．reasonB．standardC．principleD．formula

A.reason

B.standard

C.principle

D.formula

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第3题

A. American B. British C. standard D. enough

A.American

B. British

C. standard

D. enough

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第4题

标准化死亡比（standard mortality ratio)

标准化死亡比(standard mortality ratio)

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第5题

A．specialB．strangeC．standardD．odd

A.special

B.strange

C.standard

D.odd

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第6题

It can be concluded that science education has reached a new ______ of development.

A.grade

B.class

C.standard

D.stage

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第7题

What was another contribution by Edison to the movies？A．He introduced the 35 mm standard m

What was another contribution by Edison to the movies？

A．He introduced the 35 mm standard machine to the world.

B．He introduced the 35 mm as the international standard film width.

C．He created a 35 mm standard device for showing movies.

D．He created his own standard devices for showing 35 mm film.

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第8题

This is the latest prototype.“prototype” here means a standard or typical example. （)

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第9题

The standard protocol used for sending Internet e-mail is called _____. It works in conjunction with POP servers.

A.SMTP

B.WWW

C.TCP

D.UDP

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第10题

当Subdivision物体处于Standard模式时，Subdivision具有()元素

A.面

B.边

C.顶点

D.UV

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第11题

The higher the standard of living,（）.

A.the greater is the amount of paper is used

B.the greater amount of paper is used

C.the amount of paper is used is greater

D.the greater the amount of paper is used

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