たくさんのとりが　にしのほうに　とんでいく（　　　）が　みえます。 A．こと B

情景对话 。

     根据对话情景和内容，从对话后所给的选项中选出能填入每一空白处的最佳选项，选项中有两个为多余选项。

Pinky: Hello, Ann! This is Pinky. How was your weekend?

Ann:   1   

Pinky: Your whole family?

Ann: Yes, all of us.   2   

Pinky: I didn't know that was your favorite. It's mine, too.

Ann:   3   , but we started dinner late. My brother Paul's car broke down. He and Jennifer got there after nine.

      We were all feeling very hungry by then.

Pinky: I thought his car was a new one. What was the trouble?

Ann:   4   Paul says that new cars are not as good as old ones. He says their steering wheels are not so good.

Pinky: By the way, Ann. Can you do me a favor? My computer doesn't work. Can I use yours for several

         days?

Ann: Sorry, Pinky, but I've lent it to Nancy.   5   I'm sure she'll lend you hers.

A. We went to our favorite restaurant, the Golden Crab.

B. Nancy is now busy preparing for the examination next week.

C. Why don't you ask Emily?

D. The food was good as usual.

E. I don't know.

F. Wonderful. We had a family dinner

贷款人发放个人住房贷款的金额不得超过借款人所购房屋价格的：（）

A、50%;

B、60%;

C、70%;

D、80%

NaCl、KNO₃、Ca(OH)₂三种物质的溶解度曲线如图一与图二所示。请回答：

（1）由图一可知，20℃时氯化钠的溶解度为      g；50℃时氯化钠的溶解度（填“>”或“<”）      硝酸钾的溶解度；

（2）欲对含有少量硝酸钾的氯化钠固体进行提纯，可以使用的结晶方法是      ；

（3）如图三所示，20℃时，将盛有饱和石灰水的小试管放入盛水的烧杯中，向水中加入氢氧化钠固体后，石灰水变浑浊，结合图二分析其原因是               。

楼宇自动化集成系统可以提供的服务有（）、（）、（）

各级政府中设置的政策研究室是( )。

A．领导机构

B．办公机构

C．办事机构

D．职能机构