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问题 单项选择题

HBsAg测定遇到最常见的假阳性为：（）

A．类风湿因子影响

B．试剂的敏感度不高

C．体内HBsAg变异

D．以上都是

E．以上不都是

答案

参考答案：A

补全对话，情景问答
看图，选择句子完成对话。（每个选项只能选一次）
A. Yes, she is.
B. No, she isn't.
C. Yes, he is.
D. No, he isn't.
1. Is he smart?
_______________________
2. Is she kind?
_______________________
3. Is she young?
_______________________
4. Is he quiet?
_______________________
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选择题

Her daughter was born ______ December 10, 1998.

[      ]

A. at

B. in

C. on

D. during

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