look, here _______ the famous pop singer.
A. comes
B. come
C. has come
D. came
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________, he must be totally exausted after a two-week trip by bus.
A. Being very strong
B. As a strong man
C. Strong as he is
D. As he is strong
邮件的正确格式是:( )
A. maiil to://abc@abcd.com
B. mail to: abc@abcd.com
C. mail to:abc@abcd.com
D. mailto:abc@abcd.com
如果一个分为左右两个框架的框架组,要想使左侧的框架宽度不变,应该用____单位来定制其宽度
设置文档的可见部分开始标记符____;结束标记符是____。