打开Windows XP窗口时，一般直接选中要打开的窗口图标，然后（）。
A.单击
B.右击
C.双击
D.左右同击
参考答案：C
_____ you may have, you should gather your courage to face the challenge. [ ]
A. However a serious problem
B. What a serious problem
C. However serious a problem
D. What serious a problem
广告词“车到山前必有路，有路必有丰田车”修辞方法用的是（）。
A.比喻
B.回环
C.对偶
D.顶针
