皮皮学，免费搜题
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搜题
【判断题】
基础坑坑口尺寸以一个人能在坑内作业方便为原则。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
【简答题】He was born in York, but he considers London his _____________since he's lived there most of his life.
【简答题】脱水反应:醇在浓硫酸催化下可发生分子内脱水,与分子间脱水。乙醇在170°C反应生成(),在140°C时反应生成()。
【单选题】Stan tends to be driven by his —— he rarely considers the consequences of his actions.
A.
tension
B.
motions
C.
emotions
D.
anxiety