问题
判断题
当测量区域的半径小于5km时，可将地面视作水平面。 （ ）
答案
参考答案：错
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当测量区域的半径小于5km时，可将地面视作水平面。 （ ）
参考答案：错
Questions 23-30
· You will hear people from the National Food Council complaining to retailers about the high prices they are charging for food products and household goods. They complain that the shops have marked up wholesale prices far too much.
· For each question (23-30), mark one letter (A, B or C) for the correct answer.
· After you have listened once, replay the recording.
Many big shops make a profit of
A．
| A. two percent or under. |
B．
| B. over five percent. |
C．
| C. about ten percent. |