动物细胞间的物质交流和信息传递是通过何种连接方式实现的？()
A. 中间连接
B. 间隙连接
C. 桥粒
D. 紧密连接
--- Can you turn down the radio, please？ --- __________ .
A. Oh, I know
B. I’m sorry, I didn’t realize it was that loud
C. I’ll keep it down next time
D. Please forgive me
--- Good morning, sir. May I help you？ --- __________ .
A. No, I don’t buy anything
B. No, I don’t need your help
C. Yes, I need some sugar
D. Oh, no. That’s OK
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