避雷器是一种限制过电压的保护装置，它与被保护物并联。

安全生产中介服务属于( )。

A．第三产业中的服务业

B．第二产业中的服务业

C．第一产业中的服务业

D．服务业

Super- short tales of the unexpected, plus read- along tapes!

Twenty soft- cover 16-page mini books help students attain reading success through a high interest approach (方法). Audio cassettes, perfect for the ESL (English as a second Language) students, build listening skills by teaching pronunciation, giving oral directions, and presenting vocabulary words in context.

Each story is followed by four pages of short, simple comprehension and vocabulary exercises.

Price: $6.00 for each pack of books

(including five books).

$7.00 for each cassettes

(all together four cassettes).

Publisher: Shanghai Educational Publish House, Simon & Schuster.

5. The exercises following each story are bout ________.

A. vocabulary and comprehension       B. listening and speaking

C. comprehension and writing         D. listening and vocabulary

6. There are ________ packs of the books in this set.

A. 4           B. 5               C. 9                  D. 20

7. If you want to buy all the books plus read- along tapes, how much do you have to pay?

A. $ 24          B. 28              C. 58                 D. 52

要检验久置的FeSO₄ 溶液是否含有Fe₂（SO₄）₃，应选用的试剂是（　　）

A．NH₄SCN溶液

B．KI溶液

C．氨水

D．Fe粉

— I hear there will be a concert of Sun Yanzi. _____ will it start?

— In two days.

A. How soon

B. How long

C. How often

D. How far

以下哪种情况不可以用甲氧氯普胺止吐（）

A.胃肠功能失调所致呕吐

B.晕车所致呕吐

C.放疗所致呕吐

D.大手术后所致恶心呕吐症状

E.给予顺铂所致呕吐