学生 a 说,机油泵中设置安全阀的目的是防止机油压力过高。学生 b 说,机油泵中设置安全阀的目的是防止机油泵工作突然停止。他们说法正确的是
A.
只有学生 a 正确
B.
只有学生 b 正确
C.
学生 a 和 b 都正确
D.
学生 a 和 b 都不正确
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】A.She died of tiredness for advising the emperor. B.She died of giving birth to the 15th child. C.She died of heart disease. D.She died of sadness.
【单选题】“How long do you think she’s been dead?” “Six or seven hours, I would say, but I’ll not be able to be more accurate until the sparbon ; for example, I need to know what she ate before she died. She mi...