题目内容

下列哪个是母儿间气体交换,营养物质和代谢产物交换的通道( )

A. 羊水
B. 脐带
C. 胎盘
D. 胎膜
E. 以上都不是

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用名词所有格形式汉译英1).妇女节2).人民公园3).这个工人的鞋4).老师们的办公室5).雷锋的日记6).理发店

1.Canyouimaginewhatlifewillbelikein________time?

A. 20 years
B. 20 year’s
C. 20-years'
D. 20-years

2. This is a ________ bike. ________ is over there.

A. visitor’s; My
B. visitor’s; Mine
C. visitor; My

3. Wang Tao is ill, so he has to go to the ________ .

A. doctor
B. doctors
C. doctor’s
D. doctor’

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