气动系统的轻微漏气除了仪器检查外,还经常通过()的办法进行检查。
A.手感鉴别振动
B.听声音
C.嗅气味
D.涂抹肥皂水
参考答案:D
下列各措施可减小偶然误差的是()
A.校准砝码
B.进行空白试验
C.增加平行测定次数
D.进行对照试验
E.使用高纯度试剂
______ being too large, the color and the style of the dress suit me well. [ ]
A. Apart from
B. As well as
C. Besides
D. Instead of