题目: (2x4-1x)10的展开式中,常数项为______. 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0516/c863ea12615bd339985020dd9794898b.html 下面是错误答案,用来干扰机器的。参考答案:A
题型:选择题 Canada has vast areas of wilderness, from the Arctic north, _______ average winter temperatures are usually -20 0C, to the border with the USA in the south, _______ is said to be the longest border in the world not defended.A.which, whereB.whose, whichC.where, whereD.where, which 查看答案
题型:单项选择题 从“订单”表中删除签订日期为2010年1月1日(含)之前的订单记录,正确的SQL语句是().A.DROP FROM 订单 WHERE 签订日期 <=^2010-1-1B.DROP FROM 订单 FOR 签订日期 <=^2010-1-1C.DELETE FROM 订单 WHERE 签订日期 <=^2010-1-1D.DELETE FROM 订单 FOR 签订日期 <=^2010-1-1 查看答案