为统一规范基金认（申）购费用及认（申）购份额的计算方法，更好地保护基金投资人的合法权

单词拼写：根据下列句子及所级汉语注释，写出空缺处各单词的正确形式。（每空只写一词）

1. The course will start in ______ (十二月).

2. She ______ (提醒) me that I hadn't written to Mother.

3. I hope to be back in a ______ (两星期).

4. My ______ (最喜欢的) colour is green.

5. The baby in the next room ______ (睡醒) and began to cry.

6. ______ (水桶) are often used for holding and carrying water.

7. They look like the teeth of a ______ (凶猛的) animal.

8. It is ______ (危险的) for children under five years old to be left alone at home.

9. Because of this special experience, he was chosen to be an ______ (助理) to the president for

    energy affairs.

10. Two years later, he left his parents and entered a ______ (医学的) college.

国家对采区采出率的规定是：薄煤层不低于（），中厚煤层不低于（），厚煤层不低于75%。

客户信用证券账户可以从事的交易有( )。

A．买入所有A股股票
B．买入所有B股股票
C．担保物和交易所规定的证券
D．交易所债券回购交易

含有amol FeBr₂的溶液中，通入xmol Cl₂。下列各项为通Cl₂过程中，溶液内发生反应的离子方程式，其中不正确的是 [ ]

A．x＝0．4a，2Fe²⁺ +Cl₂ ＝2Fe³⁺+2Cl^-

B．x＝0．6a，2Br^-+ Cl₂ ＝ Br₂+2Cl^-

C．x＝a，2Fe²⁺ +2Br^-+2Cl₂ ＝Br₂ +2Fe³⁺ +4Cl^-

D．x＝1．5a，2Fe²⁺ +4Br^-+3Cl₂ ＝2Br₂+2Fe³⁺ +6Cl^-

什么叫闸门调节？有何特点？