如图所示,均质圆盘重为W,半径为R,绳子绕过圆盘,两端各挂重为Q和P的物块,绳与盘之间无相对滑动,且不计绳重,则圆盘的角加速度为()。
A.
B.
C.
D.
参考答案:D
My grandma _________ Chinese food ________ Western food.
A.would rather, than
B.prefers, than
C.would rather, to
D.prefers, to
— Is three o'clock _____ for you?
— I am afraid I will be busy working in my office then. [ ]
A. enough
B. late
C. comfortable
D. convenient