题目内容

[音频]1.Li Ting and Michael are on a TV interview.

A. 对
B. 错

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2.The topic for discussion is environmental protection.

A. 对
B. 错

3.Li Ting thinks environmental pollution is nothing serious.

A. 对
B. 错

4.Li Ting thinks we may start with saving water.

A. 对
B. 错

二进制 11011是十进制数____的补码。