Confusable Words (选词填空：每空只填一个单词，用所给单词的适当形式)Group 1consist, compose, comprise, constitute1. Water is ______ of hydrogen and oxygen. 水由氢和氧组成。2. Water _____ of hydrogen and oxygen. 水由氢和氧组成。3. North America _____ of the United States, Canada, and Mexico. 北美洲包括美国、加拿大和墨西哥。4. The United States, Canada, and Mexico ________ North America. 美国、加拿大和墨西哥合起来构成北美洲。5. North America _______ the United States, Canada, and Mexico. 北美洲包括美国、加拿大和墨西哥。6. Ten stories _______ the book. 十个故事组成了这本书。7. Seven days ______ a week. 七天为一周。Group 2speed, rate, pace8. She can read at the _____ of 100 words a minute. 她每分钟能阅读100个单词。9. He drove at a ______ of 70 miles per hour. 他以每小时七十英里的速度行驶。10. The work progressed at a slow ______. 工作进展很慢。11. He must pay at the ______ of 10 percent. 他必须按照百分之十的比率付款。12. If you advance one _____, I will shoot you. 你再向前走一步，我就开枪了。13. We can’t go any faster. We’re already at top _______. 我们不能再快了。我们已经全速前进了。Group 3tired, exhausted, worn out14. He became ______ from hours’ reading. 他阅读了几小时，感到疲倦。15. He returned at last, too ______ to eat anything. 他终于回来了，累得吃不下任何东西。16. He divorced his wife because he was _______ from listening to her constant complaints. 听妻子不停地抱怨而厌烦，他为此和她离婚了。17. She was too _______ and distressed to talk about the tragedy. 她太疲惫和忧伤了，不想谈论那场悲剧。

Activity通过（）方法可以设置它的布局文件,并把视图显示在界面上。

A. setLayoutView()
B. setContentView()
C. setLayoutViews()
D. setContentViews()

Activity在（）状态时处于屏幕最前端，它是可见、有焦点的，可以与用户进行交互？

A. 启动状态
B. 运行状态
C. 暂停状态
D. 停止状态