剪切机比锯机切断面平整,轧件端部不变性。
参考答案:错
在某导体两端加3V电压时,通过该导体的电流为0.2A;在这个导体两端加6V的电压时,通过该导体的电流是多少?
Helen learns to dance three times a week. Now she dances _____ Anita does.[ ]
A. so good as
B. as well as
C. as good as
D. so well as