固体硝酸钾的溶解度曲线如下图所示，下列说法正确的是（） A．70 ℃时，硝酸钾

完形填空(共10小题；每小题2分，满分20分)

阅读下面短文，掌握其大意，然后从21—30各题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。

When I was a kid, I got interested in astronomy（天文学）. I used to __21__ how big the universe might be and what are “ __22__ ” the stars. But as I grew up, I hardly had any time to __23 __ my hobby because of too much work. In 2007 I found an astronomy magazine and got attracted to astronomy again. However, I didn’t have much time for my __24__ . Many times I would like to observe an object in the night sky, but I was either too __25__ or busy working, or I had to look after my kids. So I __26 _ them to observe the stars together with me and I even read kids’ astronomy books to them. By having a common hobby we spent time together and we all found it __27__ .

While reading astronomy books, I figure out how many interesting things there are outside of this planet. I __28__ that the information opens a door to a huge world of interesting things.

I enjoy astronomy as a hobby and I recommend it to everyone. Just __29  _you and your family sitting together watching the stars and talking in the __30__ on a summer night! How cool it will be!

21. A. teach            B. wonder              C. discuss                     D. find

22. A. near            B. over                 C. below                        D. behind

23. A. develop          B. meet                C. tell                             D. stop  

24. A. exams           B. magazines            C. hobby                     D. music

25. A. tired            B. excited                C. curious                     D. puzzled

26. A. ordered          B. advised              C. begged                         D. encouraged

27. A. necessary        B. interesting                  C. boring                     D. useful 

28. A. realize           B. remember           C. admit                             D. expect 

29. A. consider         B. remind                     C. imagine                           D. support

30. A. library          B. cafe                C. playground                   D. yard

380V电动机采用何种供电方式？

会议通知的回执对会议成功与否没有太大影响。( )

最高管理者必须定期组织管理评审。（）

根据李氏定理，做TD播模型测试的时候要保证6m的范围内有（）个采样点。

A.36～50

B.46～50

C.70～80

D.36～60