皮皮学，免费搜题
登录
搜题
【简答题】
PLC系统与继电接触器系统工作原理的差别。(4分)
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】Dark glasses are sometimes worn to ________ the eyes from strong sunlight .
A.
protest
B.
guarantee
C.
protect
D.
prevent
【简答题】A．The food served in the cafeteria usually lacks variety. B．The cafeteria sometimes provides rare food for the students. C．The students find the service in the cafeteria satisfactory. D．The cafeteria ...
【简答题】阅读理解 If English means endless new words, difficult grammar and sometimes strange pro- nunciation, you are wrong. Haven't you noticed that you have become smarter since you started to learn a language?...
【简答题】A．I like the weather in Shenyang. B．Well, it is cold in winter and hot in summer. C．It is the nicest season of the year. D．It is going to snow tonight.
【判断题】The term per pro (p.p.) is sometimes used in signatures and means 'for and on behalf of'.()
A.
正确
B.
错误
相关题目：
参考解析：
知识点：
题目纠错 0
发布
