下列皮试液1 ml含量错误的是 A．青霉素：500U B．链霉素：2 500U C．

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问题单项选择题

下列皮试液1 ml含量错误的是

A．青霉素：500U
B．链霉素：2 500U
C．破伤风抗毒素：150U
D．细胞色素C：7.5mg
E．普鲁卡因：2.5mg

答案

参考答案：D

选择题

( ) 1.	A. He plays football in the afternoon.
( ) 2.	B. She likes cereal for breakfast.
( ) 3.	C. She goes to school. She likes school.
( ) 4.	D. He gets up in the morning.

选择题

A．电风扇

B．电饭锅

C．电灯

D．发电机