4. 水底隧道常年在地下水位以下,其防水的主要措施有( )等。 A. 采用防水混凝土 B. 壁后回填 C. 围岩注浆 D. 双层衬砌 ...
4. 水底隧道常年在地下水位以下,其防水的主要措施有( )等。 A. 采用防水混凝土 B. 壁后回填 C. 围岩注浆 D. 双层衬砌 ...
4. 水底隧道常年在地下水位以下,其防水的主要措施有( )等。 A. 采用防水混凝土 B. 壁后回填 C. 围岩注浆 D. 双层衬砌 ...
23. His long _____ raised fears about his safety. A. absent B. absentee C. absenting D. absence ...
10. The boss said he would ____ in his mind one plan against the other to arrive at an answer. A. think B. get C. discuss D. weigh ...
8. My dog walks to his bowl________a day. A. much time B. much times C. times D. many times ...
25. I owe a great deal to my coach. Without his encouragement, I ________ my goal. A. will never have achieved B. needn't have achieved C. would never have achieved D. mustn't have achieved ...
21. The detective and his assistant have begun to ___ the mysterous murder. A. look into B. see to C. make over D. come through ...
25. ( )'He moved away from his parents, and missed them _____ enjoy the exciting life in New York. A. too much to B. enough to C. very much to D. much so as so ...
20. ( )'He lost control of his feelings and began to______ A. itch B. burn C. suppurate D. weep ...