患者，男性，38岁。口腔颊舌粘膜糜烂，进食困难，反复发作半年，1月来自觉消瘦，并且发生全身皮疹。查体：躯干四肢散在黄豆大至蚕豆大松弛性水疱，尼氏征阳性。
首先需要做何种实验室检查，以便尽快确诊：

听力原文：M: I' ve lost the disc of John.W: If he finds out, he will really lose his temper.How will John react when he learns about what the man did?A．He'll become very angry.B．He'll tend to find it.C．He'll try to find it.D．He'll get another one.

A.
W:
B.
How
C.He'll
D.
B．He'll
E.
C．He'll
F.
D．He'll
G.

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设立契约型基金,签署基金合同的主体中不包括( )。

A.基金托管人
B．基金管理人
C．基金投资者
D．基金评级机构

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