为保证起锯平稳，起锯时（）。
A、施加压力要小，行程要短
B、施加压力要小，行程要长
C、施加压力要大，行程要短
D、施加压力要大，行程要长
参考答案：D
They have demanded that all the facts______ known to the public.
A．make
B．are made
C．be made
D．should make
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