晋升刺激是与（）相联系的一种激励手段。
A.计件工资制
B.计时工资制
C.计件工资制和计时工资制均可
D.其他形式的工资制
参考答案：B
计算下面各题
63×1.25×0.83.5×2.5-0.5×3.515.8÷2.5÷47.65-0.65×4．
—______ does your school have sports meeting?
—Twice a year.
A．How often
B．How soon
C．How long
D．How far
