A. Mr. Robinson's reason for leaving.
B. Mr. Robinson's new appointment.
C. A vacant position.
D. How to apply for a job.

What do people who want to cut down on salt do?A. They are very careful with food with high level of sodium.B. They refuse to eat any food with sodium.C. They add a pinch of salt to processed foods.D. They turn to eat fast food instead of home-made dishes.

A.
B.
B.
C.
C.
D.
D.

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全站仪一般由（）组成。

A.电子测距仪
B.光学经纬仪
C.电子经纬仪
D.电子记录装置

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