某根类药材的块片呈类白色或淡棕色，表面有时可见残留的灰棕色栓

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问题单项选择题

某根类药材的块片呈类白色或淡棕色，表面有时可见残留的灰棕色栓皮，切面可见由纤维形成的浅棕色同心环纹，该药材是( )

A．甘草
B．山豆根
C．苦参
D．葛根
E．防己

答案

参考答案：D

问答题

	1. How many legs does it have? ________________________________
	2. — Where is Li Ming? — He's _________ the school.
	3. Does a kangaroo have stripes? ________________________________
	4. What has a trunk? ________________________________
	5. Can a dog swim? ________________________________

问答题简答题

汇票的承兑有两种是什么？