题目内容

I used my___.

A. handy
B. mobile

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Hello.___ Emma Robson.

A. Here is
B. This is

___to speak to Mr. Griggs, please.

A. I like
B. I'd like

Thank you.---_____.

A. Please.
B. You're welcome.

人绒毛膜促性腺激素主要从（）中制取。

A. 血液
B. 尿液
C. 胎盘
D. 其它体液