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【简答题】
阿姨家的院子里跑着一些鸡和兔，小明数了数，一共有9个头，26条腿。阿姨家院子里有多少只鸡，多少只兔？
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皮皮学刷刷变学霸
举一反三
【简答题】For this reason, you will need to buy several dictionaries during your reading life. Find one that you like, and (10) ________ its new editions when it’s time for a new one.
【简答题】I _________ to tell you that your application for the job was unsuccessful. (ordinary, regret, stare at, to be honest, lightly, load, get on well with, for this reason)
【简答题】For this reason, you may want to perform ____________________ for each part of your business rather than for the business as a whole.
【单选题】录像机视频清晰度调整要调整电视机()及录像机的锐度电位差,使图像中的楔形线最清楚,读出可以分辨的最大线数,此线数即为录像机的清晰度线数。
A.
色度
B.
亮度
C.
对比度
D.
亮度、对比度
【单选题】使用下述步骤描述算法,实现的是什么功能( )。 [1] 输入N的值 [2] 设i=1,sum=0; [3] 如果i<=N,则执行[4],否则转到[7]; [4] sum=sum+i ; [5] i=i+1 ; [6] 返回到[3]; [7] 输出sum的结果。
A.
1 至N的累加和
B.
1 至N的累乘积
C.
N 个任意数的和
D.
N 个任意数的积
【单选题】录像机视频清晰度调整要调整电视机的()及录像机的锐度电位差,使图像中的模形 线最清楚,读出可以分辨的最大线数,此线数即为录像机的清晰度线数。
A.
色度
B.
亮度
C.
对比度
D.
亮度、对比度
【单选题】If you can imagine dangers, you can often protect yourself from them. For this reason, early humans who had good imaginations did not usually
A.
true
B.
false
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