对于潮湿而触电危险性较大的环境，人体的电阻一般是按1000考虑的。
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用分子式来表示化学反应的式子叫做化学方程式。
A. 对
B. 错
Questions 11 to 18 are bused on the conversation you have just heard.
A. It’s the longest report she’s ever written.
B. She’s only half way done with it.
C. She’ll finish it in two weeks.
D. She has spent less time on it than the man thinks.
He ______ in this school since 2000.
A. [A] taught [B] has taught [C] teaches
Lisa painted the surface of the orange
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