AFP是诊断原发性肝癌较敏感和特异的肿瘤标志物，当发生原发性肝_爱下问搜题

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问题单项选择题共用题干题

AFP是诊断原发性肝癌较敏感和特异的肿瘤标志物，当发生原发性肝癌时，约80％的患者血清中AFP水平升高，AFP水平在一定程度上反应肿瘤的大小，其动态变化与病情有一定的关系。

某些非恶性肝脏病变时，AFP水平亦可升高，但AFP水平升高的程度和幅度往往不如肝细胞癌，鉴别诊断必须通过动态观察的指标是（）

A.AFP和ALT

B.AFP和LDH

C.AFP和GGT

D.AFP和CEA

E.AFP和AFU

答案

参考答案：A

句型转换

句型转换。

1. "Jack, can you help with the dinner?" Jack's mother asked. (改成间接引语)

Jack was asked ______________ he ______________ help with the dinner.

2. Peter does well in basketball. He does well in football, too. (合并成一句)

Peter does well in ______________ basketball ______________ football.

3. The girl didn't know where he could find her mother. (改成简单句)

The girl didn't know where ______________ ______________ her mother.

4. He forgot to turn off the light and left. (同义句转换)

He left ______________ the light ______________.

5. We should allow the students to tell their own ideas. (改成被动语态)

The students should ______________ ______________to tell their own ideas.

问答题简答题

试述有效服务标准的准则。