既治食积腹痛，又治疝气痛的药为A．谷芽 B．麦芽 C．神曲 D．_爱下问搜题

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问题单项选择题

既治食积腹痛，又治疝气痛的药为

A．谷芽

B．麦芽

C．神曲

D．山楂

E．鸡内金

答案

参考答案：D

选择题

— Julia said she sent you a birthday card yesterday. Have you got it?
— Oh, really! I haven't _____my mailbox yet.

A. examined
B. reviewed
C. tested
D. checked

单项选择题

边际储蓄倾向为20％，则投资乘数为（）

A.1

B.2

C.4

D.5