下列关于胃泌素作用的叙述，错误的是 ( )A．促进胃酸分泌

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问题单项选择题

下列关于胃泌素作用的叙述，错误的是 ( )

A．促进胃酸分泌

B．促进胃蛋白酶原分泌

C．抑制胆囊收缩

D．促进胃的蠕动

E．对胃黏膜具有营养作用

答案

参考答案：C

选择题

In today’s world, being able to speak more than one language, including English, is ______ you stand out and get ahead.

A．what

B．that

C．which

D．how

选择题

(2011·江西)It ________ be the postman at the door.It's only six o'clock.

A．mustn't

B．can't

C．won't

D．needn't