滴有酚酞溶液的Ca(OH)2溶液分别与下列各物质恰好完全反应后,溶液仍显红色的是 发布时间:2017-06-27 16:21 │ 来源:www.tikuol.com 题型:选择题 问题: 滴有酚酞溶液的Ca(OH)2溶液分别与下列各物质恰好完全反应后,溶液仍显红色的是( )A.K2CO3溶液B.H2SO4溶液C.稀盐酸D.CO2
题型:选择题 用括号内所给词的适当形式填空。1. While they were playing football, I ____ (record) the score. 2. My dear daughter, I have some exciting news ____ (tell) you. 3. It seems difficult for us ____ (camp) in the forest. 4. Riding a bike can save more time than ____ (walk). 5. They are making a ____ (decide) about saving money. 查看答案
题型:选择题 在数据业务的调测过程中,我们常通过PING命令来验证设备两端的以太网业务是否建立,如果向IP地址为129.9.0.1的端口连续PING200次包长为1000字节的数据包,DOS命令为()A、ping129.9.0.1-l200-t1000B、ping129.9.0.1-i1000-t200C、ping129.9.0.1-l1000-n200D、ping129.9.0.1-i200-n1000 查看答案