I can't find my key. I ___________ unloc_爱下问搜题

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问题选择题

I can't find my key. I ___________ unlock my door. [ ]

A. can

B. can't

C. don't

答案

答案：B

补全对话，情景问答

给下列问句选择正确的答语。

( ) 1. Are cameras easy for Danny?
( ) 2. May I take your picture?
( ) 3. Where are you going?
( ) 4. Are you okay?

A. We are going to the park.
B. Sure.
C. No. It's hard for Danny.
D. No. I hurt my nose.

单项选择题

衡量防护材料防护性能的铅当量单位为()

A．伦琴

B．拉德

C．Gy

D．居里

E．毫米