皮皮学，免费搜题
登录
搜题
【多选题】
下面对表压和真空度的表述,哪对的A.
表压强=绝对压强—大气压强
B.
表压强=大气压强—绝对压强
C.
真空度=大气压强—绝对压强
D.
真空度=绝对压强—大气压强
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】They were all pleased with _____ them. [ ]
A.
what you said
B.
what did you say
C.
what you had told
D.
what you had spoken
【单选题】I didn't hear clearly ____ because it was very noisy. [ ]
A.
what did you say
B.
what you said
C.
what you say
D.
what do you say
【简答题】pill
【简答题】一个给水当量为 L/s