The most important thing to be a successful blogger is to ______________.
A. Setting up a blog
B. Thinking up sth. interesting to say
C. Having a large audience
D. Finding a good website
What problems do the Weibo addicts have?
A. high level of anxiety
B. discouraged from activities
C. loss in productivity
D. All are mentioned.
单片机复位操作的主要功能是把PC初始化为（ ）。
A. 0100H
B. 2000H
C. 0002H
D. 0000H
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