怎样判断胶轮车主轴瓦声响（）。
A、突然加油时，响声加大而明显
B、长时间运转
C、加大油门
D、加满机油
参考答案：A
714÷7的商是______位数，商大约是______．
_____ many other scientists, Albert Einstein enjoyed music besides scientific
research work.
A．In common
B．In the same
C．In common with
D．As
