用船对水下护脚(护根)工程进行探测时,将测船定位在()上。
A.岸坡
B.根石
C.任意水面
D.拟探测断面所对应的水面
参考答案:D
用所给动词的正确形式填空。
1. _______ (take) a bus is much faster than walking.
2. Simon spends a lot of time _______ (practise) playing basketball every day.
3. He with his friends _______ (play) football now in the playground.
4. I will go with you if it _______ (not rain) tomorrow.
5. Can you help me ________ (solve) the problem?
武举制自隋代开始实行。