皮皮学，免费搜题
登录
搜题
【单选题】
异步电动机变频调速,由基频向下调节时应保持______基本不变A.
定子电压
B.
定子电流
C.
输出功率
D.
主磁通
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】The cylinder head contains_______for cooling in the assembled engine.
A.
Oil passages
B.
Water passages
C.
A fan
D.
An oil cooler
【单选题】Cylinder head contains water ______ for cooling engine.
A.
jacket
B.
jacketed
C.
jackets
D.
pipe
【简答题】在全屏幕编辑状态下，按（）键可保存文件并退出此状态，按（）键或（）键放弃存盘退出。
【单选题】The head of the sperm contains______________.
A.
the nuclei and the acrosome
B.
the nuclei and the flagellum
C.
the nucleus and the acrosome
D.
the nucleus and the flagellum
【单选题】Cylinder head contains water ______ for cooling engine.
A.
jacket
B.
pump
C.
tank
D.
pipe
【单选题】The cylinder head contains for cooling in the assembled engine.
A.
oil passage
B.
water jackets
C.
a fan
D.
an oil cooler
【单选题】Cylinder head contains ______ for cooling in the assembled engine.
A.
spark-plug holes
B.
water jackets
C.
valves pockets
D.
grooves
相关题目：
参考解析：
知识点：
题目纠错 0
发布
