—Is that an eraser?
—No, ______.[ ]
A. it is
B. it isn't
C. that isn't
答案:B
交流接触器线圈一般做成薄而长的圆筒状,且不设骨架。
属于无店铺零售业态的有()
A.电视购物
B.网络购物
C.自动售货亭
D.邮购
E.专卖店