蝴蝶阀的作用？

单词拼写（共10小题；每小题1分，满分10分）

根据下列句子及所给汉语注释，在句子右边的横线上写出空缺处各单词的正确形式。（每空限写一词）。

66.   (不幸的)，the temperature on earth is increasing by one degree centigrade every year.                                                                 66.___________

67. I will wait for you at the    (喷泉) .                      67.___________

68.She was so angry that she   (撕扯)the letter into pieces.       68. ___________

69.Quite a few young people would like to live a   (单身)life.   69. ___________

70.Students are    (禁止) to bring cellphones .                       70. ___________

71.The broken    (树枝)have been swept away.                71. ___________

72.There are twenty books______.(总共)                        72.           

73.Walk   (直着)and the hotel is just on your left.                73.           

74.It is good for you to have a little   (巧克力).                  74.           

75.Are all the     (乘客) aboard? .                                 75.           

一个瓶子恰好能装下1kg的硫酸，用它一定能装下1kg的（　　）

A．水银

B．纯水

C．酒精

D．空气

治愈肺结核病的关键是什么？

挥发分坩埚盖上的灰白色物质的产生，会使挥发分测定值偏高，被测物质（）受其影响最大.

A.烟煤

B.焦炭

C.褐煤

《银行业监督管理法》所称的银行业金融机构包括邮政储蓄机构。87、