从国际上看，公共关系公司大致有以下几种类型（） A.综合服务咨询公司 B.专项业务服

同义句转换。

1. When he was still a boy of ten, he started working to support himself.

     _______ _______ _______ _______ _______ _______, he started working to support himself.

2. He practises very hard so as to pass the driving test pass the driving test, _______ _______ _______ 

    he practises very hard.

    He practises very hard _______ _______ _______ he can pass the driving test.

3. I happened to be bathing when the telephone rang. 

    _______ _______ _______ _______ _______ _______ when the telephone rang.

4. I didn't happen to have any money with me.

    I _______ _______ _______ have any money with me.

5. I visited the Great Wall for the first time. 

    _______ _______ the first time that I _______ _______ the Great Wall.

6. She thinks it is no use arguing with him.

    She thinks _______ _______ _______ arguing with him.

急性下呼吸道梗阻时，下列哪种药物忌用（）

A.阿托品

B.β-受体阻滞剂

C.异丙肾上腺素

D.氢化可的松

E.琥珀胆碱

常采用的两种存储结构是( )。

A．顺序存储结构和链式存储结构

B．散列方法和索引方式

C．链表存储结构和数组

D．线性存储结构和非线性存储结构

动物也有年轮。

2008年2月10日，某投资者以120点的权利金买入一张3月份到期，执行价格为10200点的恒生指数看涨期权，同时，又以180点的权利金卖出一张3月份到期，执行价格为10000点的恒生指数看涨期权。那么该投资者的盈亏平衡点(不考虑其他费用)是( )点。

A．10000
B．10060
C．10100
D．10200