一台圆柱减速机器ZQ40的承载能力是随它的输入轴转速不同而有变化的。一般来说是输入转速越高，许用轴入功率也相应增加。
参考答案：对
The earth became so violent ____it was not clear ____ the shape would last or not.
A．which; whether
B．that; what
C．what; if
D．that; whether
下列哪项不是心肌梗塞的并发症（）
A.室壁瘤
B. * * 肌或腱索断裂
C.室间隔穿孔
D.心肌炎
E.附壁血栓
the shape would last or not
.