皮皮学，免费搜题
登录
搜题
【单选题】
以R134a代替过去常用的氟利昂作制冷剂,下列说法不正确的是 。A.
必须改用适于它的脂类润滑油
B.
不能用卤素检漏灯
C.
不能用硅胶作干燥剂
D.
排气温度高'需采用
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
【多选题】Why is the student interested in the professor's class?
A.
He wants to learn about his family background.
B.
He already has the language skills needed for the class.
C.
The professor has a reputation as an expert on Poland.
D.
The course is related to the student's intended course of study.
【简答题】下图中控制电路是如何实现两台电动机的顺序停止的？
【简答题】The student had to do a 1)__________ paper for history.There was a 2)________ book that she needed. She tried the card catalog but it was not 3)__________.Then she was told by the 4)_________ that all...
【单选题】The nursing instructor asks a nursing student to identify the priorities of care for an assigned client. Which statement indicates that the student correctly identifies the priority client needs?
A.
Actual or life-threatening concerns are the priority.
B.
Completing care in a reasonable time frame is the priority.
C.
Time constraints related to the client’s needs are the priority.
D.
Obtaining needed supplies to care for the client is the priority.
【单选题】• Don't openly express annoyance at a professor or class. ___5___ When a student attacks a professor on the social media, the language used actually says more about the student. If there is truly a co...
A.
That's what they are for.
B.
Turn to an online instructor for help.
C.
If more information is needed, they will ask.
D.
Remember that online professors get a lot of emails.
E.
Below are some common do's and don' ts for online learners.
F.
Everyone has taken a not-so-great class at one time or another.
G.
Ask questions, but make sure they are good, thoughtful questions.
相关题目：