皮皮学，免费搜题
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【判断题】
焊缝外观质量在很大程度上反映出焊工对工艺规范的执行情况A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】听力原文：M: Hi, Mary. Do you want to start writing a lab report after we finish this experiment? W: I can't. In fact I need to finish the experiment early because I'm going over to the Psychology Departme...
A.
A chemistry assignment.
B.
A study that their chemistry professor did.
C.
A class that the woman is taking.
D.
A possible job.