皮皮学,免费搜题
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搜题
【判断题】
刚体作平面运动时,其平面图形上各点的瞬时速度若相同,则该瞬时刚体的角速度必须为零。
A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【单选题】烟酸缺乏可引起:
A.
癞皮病
B.
溶血病
C.
脚气病
D.
坏血病
E.
软骨病
【简答题】He told me her name only after I ______ (ask) her twice.
【单选题】烟酸缺乏可以引起( )。
A.
溶血病
B.
脚气病
C.
软骨病
D.
癞皮病
【单选题】烟酸缺乏可引起
A.
癞皮病
B.
干眼病
C.
坏血病
D.
步行困难
E.
脚气病
【单选题】She told me her name only after I ___ her twice.
A.
would ask
B.
asked
C.
had asked
D.
had been asked
【简答题】She told me her name only after I (ask) her twice.
【简答题】店面设计包括店门设计、橱窗设计、招牌设计 要求:标注尺寸、材质、效果图
【单选题】______ she joined the company only a year ago, she's already been promoted twice.
A.
Although
B.
Because
C.
If
D.
When
【单选题】烟酸缺乏可引起的疾病是
A.
癞皮病
B.
干眼病
C.
坏血病
D.
步行困难
E.
脚气病
【单选题】She told me her name only after I _________ her twice.
A.
asked
B.
ask
C.
had asked
D.
is asking