在同一井道内,两相邻轿厢问的水平距离不大于()m,且大于等于0.3m时,可使用轿厢安全门.
A.0.5
B.1
C.0.75
D.1.5
参考答案:C
—Could I go boating this weekend, Dad?
—Yes, you ________. But you have to come back before lunch. [ ]
A. can
B. must
C. need
D. should
某一台微型计算机的内存容量为128M,指的是( )。
A.128N位
B.128M字节
C.128M字
D.128000K字