用括号内的试剂除去下列各物质中少量的杂质,正确的是。 A.溴苯中的溴(碘化钾溶液

题型:选择题

问题:

用括号内的试剂除去下列各物质中少量的杂质,正确的是。

A.溴苯中的溴(碘化钾溶液)

B.硝基苯中溶有二氧化氮(水)

C.乙烷中的乙烯(氢气)

D.苯中的甲苯(溴水)

考点:烷烃的通式环烷烃(环己烷、环丙烷等)甲烷烷烃的通性
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单词拼写 (共10小题; 每小题1分, 满分10分)

1. It had been my life long a _______________ to be a teacher in a famous university.

2. The big house is perfectly a______________ for just the two of us.

3. A state of emergency has been d____________ in Libya.

4. Children under 12 must be a____________ by an adult.

5. Any w____________ to the accident are asked to contact the police station.

6. Many of the villagers have a______________ their homes and fled in the tsunami in Japan.

7. I caught a glimpse of them r____________ in the mirror.

8. Once we have all the r___________ information, we can make a decision.

9. The new government has agreed to p______________ in the peace talks.

10. We strongly r_________ you insure your luggage when you travel.

题型:选择题

在下列横线上填入适当的话语(可以是句子、短语或单词),使对话完整。

— Hi, Maria ! There will be a wonderful movie this Saturday evening . 1.______________________? 

— Sounds great! 2._______________________? 

— It's about life in space .

— That sounds exciting . 

— Yes . All the people travel by spaceship in the movie , and they can visit planets like Mars . 

— 3._____________ ? Kang Kang , do you think people will live on Mars in the future ? 

— 4.________________, I think we will live in space one day .We will be able to do anything that can be done

    on the earth . 

— What fun! 5._________________________ .

题型:选择题

病毒潜伏感染的特点是()。

A.无显性感染期

B.急性发作时查不到病毒

C.潜伏期体内查不到抗体

D.潜伏期抗体阳性但分离不到病毒

E.潜伏期可分离出病毒但抗体阴性

题型:选择题

林业行政复议有哪些特征?

题型:选择题

对于非公开募集基金,由中国证监会及其派出机构实行统一监管,下述各项中()不是遵循的原则。

A.适度监管

B.事前监管

C.底线监管

D.自律监管

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