题目内容

位于风化壳最表层的松散堆积物叫坡积物。 ( )

A. 对
B. 错

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单斜谷是沿单斜岩层走向伸展的河谷。单斜岩层反倾的一侧谷坡较陡,不利于公路布线。()

A. 对
B. 错

风化作用可分为物理风化作用、化学风化作用和生物风化作用三大类。()

A. 对
B. 错

“We will do what we can to get the goods __________ on time,” said the manager of the company.

A. reached
B. arrived
C. delivered
D. come

He won’t go on doing the job __________ he gets his salary raised.

A. when
B. after
C. If
D. unless

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