下列化合物在光照下与氯气反应，生成的一氯代物只有一种的是( )

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问题单项选择题

A．新己烷
B．新戊烷
C．异戊烷
D．正戊烷

答案

参考答案：B

解析：只有分子中的所有氢原子都等价时才会生成唯一一种一氯代物。

填空题

根据句意及首字母补全单词，使句意完整。

1. He is a reporter from the best r______ station in the city.

2. I like traveling by train. I think it's more c______ way than traveling by bus.

3. Look! The girl sitting c______ to Lucy is her sister.

4. Heilongjiang is the farthest n______ province of China.

5. Tom like drinking tea with milk, but I like Chinese tea w______ something.

6. Because I like music very much, my mother wants to buy a piano for me, but we have e______

money to buy.

7. If they don't improve the q______ of TV sets, nobody will buy them.

8. It rained heavily yesterday. I think it's the w______day in this week.

9. On Spring Festival Eve, we families have a big dinner t______ to celebrate the festival.

10. Many people slept because of his d______ speech.

单项选择题

我国有权监督宪法实施的国家机关是______。

A．全国人民代表大会和全国人民代表大会常务委员会

B．中 * * 党中央委员会和中 * * 纪律检查委员会

C．全国人民代表大会法律委员会和全国人大常委会法制工作委员会

D．最高人民法院和最高人民检察院