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搜题
【单选题】
电能表中铝盘所受转动力矩与制动力矩相等时,铝
A.
静止不动
B.
匀速转动
C.
加速转动
D.
减速转动
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【单选题】细胞核重复有丝分裂,最后细胞质再分裂,经过分裂,一个个体同时产生多个个体,原生动物的这种生殖方式为()。
A.
二分裂
B.
出芽生殖
C.
复分裂
D.
孢子生殖
【单选题】—How is he getting on with his spoken English? —Great. Now he can speak English ______ his English teacher. [     ]
A.
as better as
B.
as well as
C.
as good as
D.
as many as
【单选题】世界上最大的山系是( )
A.
阿尔卑斯山系
B.
喜马拉雅山系
C.
阿巴拉契亚山系
D.
科迪勒拉山系
【多选题】工程制图中,正投影表现的性质:
A.
集聚性。
B.
实形性。
C.
类似性。
D.
上述三种都存在,要满足不同的条件。
【单选题】世界上最大的山系是                                              (      )
A.
喜玛拉雅山脉
B.
科迪勒拉山系
C.
阿尔卑斯山脉
D.
乌拉尔山脉
【简答题】He speaks English so fluently as if he __________ English in England. [A] studied [B] had studied [C] would study [D] should study
【判断题】关闭显微镜前,需要将灯光调到最暗。
A.
正确
B.
错误
【单选题】—How is he getting on with his spoken English? —Great. Now he can speak English _____ his English teacher. [     ]
A.
as good as
B.
as better as
C.
as many as
D.
as well as
【单选题】下面两种凸轮机构,属于空间凸轮机构的是( )。
A.
盘形凸轮机构
B.
圆柱凸轮机构
C.
尖顶推杆盘形凸轮机构
D.
滚子推杆盘形凸轮机构
【单选题】属于空间凸轮机构的是
A.
移动凸轮机构
B.
端面凸轮机构
C.
圆柱凸轮机构
D.
盘形槽凸轮机构
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