(2x4-1x)10的展开式中,常数项为______. 发布时间:2017-05-16 15:23 │ 来源:www.tikuol.com 题型:填空题 问题: (2x4-1x)10的展开式中,常数项为______.
题型:填空题 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:填空题 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