简答加气机充气速度明显缓慢产生的原因及处理方法?
参考答案:
原因:1、加气站管线内气压力不足。2、过滤器被堵塞。
排除方法:l、检查加气站压缩机。2、过滤器排污或更换滤芯。
用所给动词的适当形式填空 (10分)
小题1:Would you like ________( come )to my birthday party this Saturday
小题2:Tom with his classmates ________( not be) in the library now.
小题3:Look!Sarah’s friend Amy ______(have) a new teddy bear in her bedroom.
小题4:I don't have much time ______ (chat) with you.
小题5:When ______ your work _______ (begin) every day?
小题6:We need ______ (read) English every day.
小题7:Who ______ (teach) you English this term? Mr Sun.
小题8:Thank you for ______ (wake) me up.
小题9:It takes me half an hour ______ (drive) to work every day?
小题10:Tom and Daniel each ______ (borrow) a book from the library.
J.Martin认为企业信息系统的建立应遵循某些普遍原则,下述哪些是J.Martin所强调应遵循的普遍原则 Ⅰ.必要的总体规划 Ⅱ.自顶向下规划与局部设计组合 Ⅲ.高层管理人员的参与 Ⅳ.数据处理人员与管理者之间的交流
A.Ⅰ和Ⅱ
B.Ⅰ和Ⅲ
C.Ⅰ,Ⅱ和Ⅲ
D.全部