下列句子中，划线成语使用正确的一句是[ ]
A．这些年轻的科学家决心以无所不为的勇气，克服重重困难，去探索大自然的奥秘。
B．陕西剪纸粗犷朴实，简练夸张，同江南一带细致工整的风格相比，真是半斤八两，各有千秋。
C．第二次世界大战时，德国展开了潜艇战，于是使用水声设备来寻找潜艇，成了同盟国要解决的首当其冲的问题。
D．关于金字塔和狮身人面像的种种天真的、想人非非的神话和传说，说明古埃及人有着极为丰富的想像力。
答案：D
| 完形填空。 | |||
| If you study in America, you need to know some classroom customs.When the teacher asks a question, you 1 to give an answer. If you do not understand the question, you should put up your hand and ask the teacher to 2 the question. If you do not know the answer, it is all 3 to tell the teacher that you do not know. Then he or she may know 4 you need to learn. There is 5 for not doing your homework. If you are absent, you should call your teacher or someone 6 is in your class and ask for the homework. It is not the teacher's responsibility to remind you 7 your missed homework. You must not be absent on a test day. If you are 8 ill, call and let the teacher 9 you can't be there for the test. If your teacher allows you to make up the test, you should take the test within one or two days after returning to class. Serious illness is the only mason for 10 a test. Be on time! It is considered rude to be late. Also, it disturbs other students. 11 you come late, be sure to be quiet. Have your books and papers out of your bag 12 you enter the room. Then come in and go to your seat quietly. In the U.S. it is not necessary to knock when you enter the classroom. If you must leave during a class, do so quietly. There is no need to ask for the teacher's permission. Before entering a teacher's office or 13 office with a closed door, knock first, then wait to 14 in. 15 in class is considered impolite by many teachers. Some teachers may ignore it, but you should get permission first. | |||
| ( )1. A. expected ( )2. A. pardon ( )3. A. wrong ( )4. A. what ( )5. A. no use ( )6. A. those ( )7. A. on ( )8. A. hardly ( )9. A. knows ( )10. A. not attending ( )11. A. For ( )12. A. after ( )13. A. any ( )14. A. be noticed ( )15. A. With a hat | B. are expecting B. repeat B. right B. how B. no time B. who B. to B. strongly B. to know B. taking B. Once B. while B. all B. be invited B. In a hat | C. are expected C. ask C. stupid C. how many C. no chance C. which C. in C. badly C. know C. not missing C. Even if C. before C. anyone C. be stopped C. Putting on a hat | D. expect D. raise D. helpful D. why D. no excuse D. whose D. of D. mostly D. knew D. passing D. Although D. as soon as D. a D. let D. Wearing a hat |