BOD表示()A.用强氧化剂氧化水中有机物所消耗的氧量  B.容易氧化的有机物含量

Mrs. Brown was much disappointed to see the washing machine she had had ____ went wrong again.

A．it

B．it repaired

C．repaired

D．to be repaired

根据短文内容和首字母的提示，把所缺单词填写在短文后面的横线上。

     Many students often 1. c______  about school. They might feel they have too 2. m_______ work to

do sometimes, or think the rules are too 3. s_______. We must learn how to change these "problems" into

"challenges". Education is an important part of our 4. d_______. As young adults, it is our 5. d_______ to

try our best to deal with each challenge in our education with the 6. h_______ of our teachers.

1._______ 2._______ 3._______ 4._______ 5.________ 6._______

电解质是指在水溶液中或熔融状态下能够导电的化合物。几位同学对此定义中关键词发表了以下理解或看法，你认为不正确的是 [ ]

A．“或”字意味着水溶液中、熔融状态下这两个条件只需具备其中之一就行了

B．“能够导电”是指该物质本身能够导电，而不是它发生反应后的生成物能导电

C．“化合物”指明了该物质不能是单质，更不能是混合物

D．像硫酸钡、碳酸钙这样难溶的化合物就不可能是电解质了

补写出下列名篇名句的空缺部分。（每空缺１分，共8分）

小题1:鹏之徙于南冥也，                ，                ，去以六月息者也。（《逍遥游》）  

小题2:               ，内无应门五尺之僮；            ，形影相吊。（《陈情表》）

小题3:亦欲以究天人之际，            ，成一家之言。（《史记·报任安书》）　　

小题4:恨相见得迟，            ，柳丝长玉骢难系，                    。（《长亭送别》）

小题5:真的猛士，                   ，敢于正视淋漓的鲜血。（《记念刘和珍君》）