生产周期较短且能保证设备充分负载的移动方法称为()
A.顺序移动法
B.平行移动法
C.平行顺序移动法
D.随机移动法
参考答案:C
下列计算正确的是( )
A.(-1)-1=1
B.(-3)2=-6
C.π0=1
D.(-2)6÷(-2)3=(-2)2
Among all the Christmas cards, I like ______ best. He made it by .[ ]
A. he, himself
B. his, himself
C. his, him
D. he, him