I like music ______ I can dance to, and you? [ ]
A. what
B. who
C. that
D. when
答案:C
1/2×(1/75+1/50)的值是( )。
A.1/10
B.1/30
C.1/60
D.1/62.5
操作台的硬件地址只允许在()的偶数范围内选择
A、2~16
B、2~128
C、2~32
D、0~64