题目内容

By the fifth night, Cliff Young () them all.

A.overtook
B. overtakes
C. had overtaken
D. has overtaken

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Todd never used illegal substances, so he easily passed the 1.perform a 2 on all employees to see if they have a criminal record.3 are documents prepared for people outside the company.As the 4, Henry oversees all accounting activities.Carol has great __, and easily finds errors.

古蔡氏法检测砷盐时，砷化氢与（）反应生成砷斑。

一般杂质是指不对人体造成伤害的杂质。

A. 对
B. 错

以下各项不属于积极倾听的技能的是( )

A. 在别人说话时,注视对方的眼睛
B. 用自己的话复述对方的话
C. 通过提问以保证理解
D. 不时打断对方的发言,以便及时表达自己的观点,形成沟通