题目内容

化学类杀菌剂是指用于杀死微生物（包括它们的孢子）的化学类品或化学类品的混合物。（）

A. 对
B. 错

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解剖刀片和碎玻璃；应当放置到不容易被刺破的带盖的容器中，把它们当作传染性物质处理。()

A. 对
B. 错

Directions: There are twelve questions in this section from No.1-No.12. Fill in the blanks by choosing the best answer.China's economic success over the past three _________ has raised the living standards of hundreds of millions of Chinese citizens.

A. quarters
B. decades
C. epochs

Citibank(花旗银行) picked the chief executive of Etang. com as its first Chinese customer Thursday to open an account at its new branch in the ________ Peace Hotel along Shanghai's fabled waterfront.

A. historic
B. historical
C. historian

The United States last Wednesday _________ tariffs(关税) up to 30 percent on a range of foreign steel imports to help protect its domestic(国内的) industry.

A. eliminated
B. imposed
C. paid