用于检测T细胞功能的细胞毒试验不包括（）。 A.51Cr释放法 B.乳酸脱氢酶释放法

China Daily is ____ a newspaper, it can also help us to improve our English. [ ]

A. less than

B. more than

C. not more than

D. no more than

What I said was so     that I finally convinced them    my honesty.

A．convincing; of

B．convincing, for

C．convinced; of

D．convinced; for

职工个人缴纳医疗保险费的比例一般为本人工资收入的( )。

A．1%

B．2%

C．3%

D．5%

人体与带电体最小安全距离，当带电体的电压在（）以下为0.1m。

手机导航软件是否需要购买？