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问题 单项选择题

极坐标交会法一般是在断面线或附近某点利用地形或建设高于水面的观测点，以（）的方向观测目标垂线位置的角度值。

A、垂直

B、平行

C、俯角

D、仰角

答案

参考答案：C

选择题

The two strangers have been talking in the park for a long time as though they ______old friends.

A．are

B．should be

C．were

D．would be
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单项选择题

The satellites over the major ocean regions cover the globe（）.

A.besides the polar regions

B.including the North Pole and the South Pole

C.above 70N and below 70S

D.as far north and south 70
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