“学习雷锋同志,弘扬雷锋精神。”是()的题词。
参考答案:江 * *
已知数列{an}满足a1=2,an+1-an-1=0(n∈N*),则此数列的通项an=( )
A.n2+1
B.n+1
C.3-n
D.2n
—I'm not ______ the dark any more.
—Oh, you're brave now. Great! [ ]
A. proud of
B. worried about
C. angry with
D. terrified of