汽车起步时，听到有“咯噔、咯噔”的响声，并伴随有震动的感觉，一般是中间轴承（）所致。
参考答案：支架松动
—What's the date today?
—___________[ ]
A. It's Monday.
B. It's January 9th.
C. It's my birthday.
D. It's our School Day.
在因特网应用中，用户需要通过查询来获得需要的网址，主要用于实现该功能的网站地址是________.
A．www.yahoo.com
B．www.microsoft.com
C．www.whitehose.gov
D．www.edu.cn
