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2n-1n[解析]:?( 1+2+2+…+2)=2,1 22n-1?数列1,(1+2),(1+2+2),…,( 1+2+2+…+2+…)的前n项和为: 2nn+1(2,1)+(2,1)+…+(2,1)= 2- n -2 4.B相关知识点: 试题来源: 解析 [解析]:当公差d为正时,若d=1,则这样的等差数列有8个 若d=2,则这样的等差数列...
3MEZfBMb1RVy1QpSrq8draNZsA3r1356XG 0.00798364BTC 区块:694046| 手续费: 381 聪|费率:1.12 聪/虚拟字节 190,583 已确认 + 0.00262619BTC 400d9738b560e5f5bea5ec04077cbaeed0c2f7ad941603a6fc9babcd1ac1bb5a 2021/08/02 14:28:11(3 年 6 个月前) 331YCQqKAUAB4ArvWxjj5v3vmEcKiFqQns 0.01BTC 3...
第1题 计数标准型二次抽样检验方案为(N,n1,n2,C1、C2),其中C1为第一次抽样时的不合格判定数,C2为第二次抽样时的不合格判定数。若n1中有d1个不合格品,n2中有d2个不合格品,则可判断送检品合格的情况有() A.1=C1 B.1<C1 C.1+d2>C2
(1-萘烯基-Κ-C2)-2-吡啶甲胺基(2-)-ΚN1,ΚN2]二甲基铪供应商 [N-[2,6-双(1-甲基乙基)苯基]-Α-[苯基-6-(1-萘烯基-Κ-C2)-2-吡啶甲胺基(2-)-ΚN1,ΚN2]二甲基铪多少钱 [N-[2,6-双(1-甲基乙基)苯基]-Α-[苯基-6-(1-萘烯基-Κ-C2)-2-吡啶甲胺基(2-)-ΚN1,ΚN2]二甲基...
//registry.npm.taobao.org/@ampproject/toolbox-runtime-version/download/@ampproject/toolbox-runtime-version-2.6.0.tgz#c2a310840a6c60a7f5046d2ccaf45646a761bd4f" integrity sha1-wqMQhApsYKf1BG0syvRWRqdhvU8= dependencies: "@ampproject/toolbox-core" "^2.6.0" "@ampproject/toolbox-script-csp...
无代码构建你的云端聊天机器人 chatbots. Contribute to builder6app/builder6.app development by creating an account on GitHub.
A simple wrapper for the rule34 api. Contribute to kurozenzen/r34-json-api development by creating an account on GitHub.
forked fromantonfrancisjeejo/medium-nextjs-with-sanity NotificationsYou must be signed in to change notification settings Fork0 Star0 Files 0c08cc8 Sign in to see the full file tree. yarn.lock Latest commit antonfrancisjeejo Initial commit ...