皮皮学，免费搜题
登录
搜题
【单选题】
以下哪项不属于水力清砂除芯操作要点？A.
注意保持设备系统的完好和正常运行
B.
铸件温度不可太高，以防受到水的激冷引起开裂
C.
除芯过程中，注意适时取出或“碎断”芯骨，对工作效率大有益处
D.
水压的高低与芯砂的强度无关
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
【简答题】The students are highly active. The students attend the art school.
【简答题】The students attend the ___________ (apprentice) after school and during summer programs.
【单选题】About _____ of the students attend the meeting.
A.
one three
B.
first three
C.
first third
D.
one thired
【单选题】检测喷油器电路时,拔掉喷油器插头,打开点火开关测量线束,技师甲说电源线应该有12V电压,技师乙说另一根线应该搭铁,请问谁的说法正确。( )
A.
甲正确
B.
乙正确
C.
甲、乙都对
D.
甲、乙都错
【简答题】The students attend the __________( apprentice) after school and during summer.
【单选题】About —— of the students attend the meeting.
A.
two three
B.
two thirds
C.
two. third
【多选题】检测喷油器电路时,拔掉喷油器插头,点火开关打开测量线束,技师甲说电源线应该有12V电压,技师乙说另一根线应该搭铁,请问谁的说法正确
A.
甲正确
B.
乙错误
C.
甲正确、乙错误
D.
甲、乙都对
【单选题】It has been announced recently that all the schools ________ not have the students attend school if the students have high temperatures. [ ]
A.
need
B.
shall
C.
could
D.
ought to
相关题目：
参考解析：
知识点：
题目纠错 0
发布
