下列方法中,不是扑救火灾基本方法的是()。
A.隔离法
B.窒息法
C.冷却法
D.断电法
参考答案:D
Mr. Green didn’t understand ________made his daughter so absent-minded.
A. how that was B what was it C. why it was that D. what it was that
下面的UPS,哪个是专用室外基站用UPS()。
A、L系列
B、M系列
C、S系列
D、T系列