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【单选题】
Welcome Everyone ! I'm always looking for a quicker way to do things on my computer. Since computers and the Internet are constantly changing, there are always new tips to be learned and shared and I look forward to learning and sharing with all of you. Please feel free to bring your tips in for me as well. And if you ever have any questions, please leave them here for me and if I can't help you I can tell you just what discussion board here can and point you in the right direction. I hope to see you checking back here often. If you don't have any tips, please feel free just to stop and say hi to me and let me know if there is anything you would like to see added here besides the tips I leave each day for you. What is the intention of the writer of the letter below?A.
Looking for tips for a quicker way to do things.
B.
Trying to offer his own advice for computer problems.
C.
Asking readers to come to ask questions of computer.
D.
Inviting readers to visit the discussion board frequently.
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【简答题】1949年4月20日夜至21日,由总前委书记( )统一指挥的第二、第三野战军,在第四野战军先遣兵团、中原军区部队配合下,得到江北人民的支援和江南的策应,在西起九江东北的湖口、东至江阴的千里战线上,发起( )战役,彻底摧毁苦心经营的长江防线。4月23日,解放军占领( ),延续22年的统治宣告覆灭。
【简答题】在进行风景写生时,在深入刻画的过程中每个局部都必须统一在 之中
【单选题】在E^2中 A={(x,sin(1/x))| x∈(0,1]} 的闭包是
A.
A
B.
A∪{(0,0)}
C.
A∪{(0,y)| y∈[-1,1]}
D.
{(0,y)| y∈[-1,1]}
【单选题】以下语句段执行后的输出结果是( )。 #include main() { int k = 3; if(k) printf("###") else printf("&&&&"); }
A.
###
B.
&&&&
C.
###&&&&
D.
有语法错误，不能执行
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