打开阅读等开关,阅读灯的()被启动,这样阅读灯获得工作电压。
A.电磁阀
B.逆变器
C.空气开关
D.电压传感器
参考答案:B
根据汉语意思完成下列各句。每空只填一词。
1. 我们该去吃午饭了。
It's time ___________ us ___________ have lunch.
2. 这座楼房和那座楼房一样高。
This building is as ___________ ___________ that one.
3. 如果你不早起,上学就会迟到。
___________ you don't get up early, you'll ___________ late for school.
4. 约翰跑得如此快,以至于我赶不上他。
John ran ___________ fast ___________ I couldn't catch up with him.
5. 昨天他直到做完作业才去睡觉。
He did ___________ go to bed ___________ he finished his homework yesterday.
页式存储管理当中的页面是由 (51) 所感知的。
A.用户
B.操作系统
C. 编译系统
D.链接程序