台秤与()同属非自动指示秤,其检定规程是完全相同的,检定记录也大体相同
A、案秤
B、电子天平
C、架盘天平
D、扭力天平
参考答案:A
8. He wants to see changes in the company and I am sure he will, ______.
A.on time
B.at a time
C.at one time
D.in time
水轮发电机主轴的结构型式有()。
A.一种;
B.二种;
C.三种;
D.四种;