皮皮学，免费搜题
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【判断题】
正线行车一般采用调车信号。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
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【单选题】听力原文：M: Where do your parents work? F: They work in a factory. Where do the woman’s parents work?
A.
They work in two different factories.
B.
They work in the same factory.
C.
Her father works in a factory, her mother works in a school.
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