Windows系统中在开机启动的时候需要长按（）可以进入安全模式。
A.F4
B.End
C.F8
D.Del
参考答案：C
Which of the following statements concerning intellectual property is wrong？（）
A.Intellectual property is an intangible creation
B.Intellectual property in ludes patents，trademarks，copyrights，etc.
C.Intellectual property is a visible creation
D.There are some agreement sconcerning intellectual property under the WTO
早安少女组是哪一年出道？（）
A.1997
B.1998
C.1999
D.2000
