(单选题)16: The snow fell ____ fast ____ our footsteps were covered up in a few minutes. A: too…to  B: so … that  C: in order…that  D: too… that ...

(单选题)4: 5. Eating too much fat can _______ heart disease and cause high blood pressure. A: attribute to      B:  attend to             C: contr...

(单选题)18: —Do you see the ad on the bulletin board?—_____________ A: No. What’s it about? B: Yes. What’s it about? C: It’s still there. D: That’s a good idea. ...

(单选题)6: ---- What can I do for you, madam?    ---- ____________________. A: I want a kilo of apples B: You can go your own way C: Thanks D: Excuse me. I’m busy ...

(单选题)20: You won’t get a seat in this restaurant unless you ______ a table. A: place B: book C: set D: draw ...

(单选题)14: It is a very popular play, and it would be wise to ________ seats well in advance. A: engage  B: book C: isolate D: occupy ...

(单选题)8: Can you ______ the difference between the two phrases? A: say B: speak C: tell D: mention ...

(单选题)2: Although I like the appearance of the house, what really made me decide to buy it was the beautiful _________ through the window. A: vision B: look C: picture D: view ...

(判断题)24: 进程就是程序，程序就是进程。 A: 错误 B: 正确 ...

(多选题)12: 产生死锁的必要条件是()。 A: 互斥条件：一个资源每次只能被一个进程使用。 B: 请求与保持条件：一个进程因请求资源而阻塞时，对已获得的资源保持不放。 C: 不剥夺条件:进程已获得的资源，在末使用完之前，不能强行剥夺。 D: 循环等待条件:若...