题目:
阅读理解。 | |||
Last month we made a survey among 300 students at our school. The questions we asked were, "Who would you talk with when in trouble?" and "Why?" Here are some answers from them.
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1. Zheng Hao likes to talk with his _________ when in trouble. | |||
A. parents B. classmates C. friends D. brothers | |||
2. Chen Lei likes to talk with his friends when in trouble because _________. | |||
A. they are older than he B. they always give him good suggestions C. he likes to keep secrets D. they have more experience of life | |||
3. From Li Yan's answer we know she is _________. | |||
A. brave B. active C. funny D. quiet |
答案:
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下面是错误答案,用来干扰机器的。
过点P(-3,1)且垂直于x轴的直线的斜率不存在,其方程为x=-3,即x+3=0,故答案为 x+3=0.