使用屏幕保程序时,下列说法正确的是()。
A.可以廷长显示器显像管的寿命
B.可以廷长硬盘的寿命
C.可以廷长光驱的寿命
D.不可以使用屏幕保护程序密码
参考答案:C
根据句意,用括号内所给单词的适当形式填空。
1. Yu Fang's brother is a _____(success) engineer.
2. I’ll be able to finish the homework _____(easy) by noon.
3. The little girl came to the city for the first time and got _____(lose).
4. Life seems so _______(fair) to someone sometimes.
5. Education is one of the most important parts of a country's _____(develop).
米氏常数