Do you want to go to the zoo with us _____ Sunday? [ ]
A.in next
B.on next
C.next
答案:C
DSA200型单臂受电弓向上运动时,力的最小值不小于()N。
A、60±5
B、70±5
C、80±5
D、90±5
常见的病毒名前缀有()
A.Trojan
B.Script
C.Macro
D.Binder