【单选题】力偶的特点,下列说法正确的是 ( )
C.
力偶矩大小相等,方向相反的二力偶,互为等效力偶
【简答题】That racket is bad enough to make Aunt Ella's eyebrows ____(raise, rise).
【单选题】Farmers should not be blamed for the rise because______.
A.
they produce the vegetables and other things
B.
they get only a small share in the profit
D.
their cost of living has also risen
【简答题】He is too weak to ______ the heavy box. A) rise B) arise C) raise D) arouse
【单选题】raise,rise,arise中哪一个是及物动词?
【单选题】力偶的特点,下列说法正确的是()
C.
力偶矩的大小相等,方向相反的二力偶,互为等效力偶
【单选题】Farmers should not be blamed for the rise because______.A.they produce the vegetables an
A.
5:Farmers should not be blamed for the rise because______. A.they produce the vegetables and other things
B.
they get only a small share in the profit
D.
their cost of living has also risen
【单选题】力偶的特点,下列说法正确的是
C.
力偶矩大小相等,方向相反的二力偶,互为等效力偶
【多选题】力偶的特点,下列说法不正确的是()
C.
力偶矩大小相等,方向相反的二力偶,互为等效力偶