（）可以作为背景色加以用色，它不会影响任何其他色彩。 A.蓝色 B.灰色 C.绿色 发布时间：2018-03-28 01:39 │ 来源：www.tikuol.com 题型：单项选择题 问题： （）可以作为背景色加以用色，它不会影响任何其他色彩。A.蓝色B.灰色C.绿色D.红色
题型：单项选择题 用所给的句子完成对话。A. I'm sorry to hear it.B. May I speak to John?C. I'm afraid I can't do that today.D.Is that Mrs Black speaking?E. Can I take a message for John?A: Hello! Who's that speaking?B: Hello! This is Mary. _1__ A: Sorry ,John isn't in.B: __2__A: Yes. This is Mrs Black.B: Mrs Black ,I called at four thirty this afternoon, but nobody was in.A: Oh,we were all out. John wasn't back home then. Mr Black and I went for a business talk. 3__B: Yes,please. John asked me to go shopping with him this afternoon. _4_ My mother is ill .l have to stay at home to look after her.A: __5 _ .Just stay at home and take a good care of your mother.B: Thank you very much. Bye ! 查看答案
题型：单项选择题 鉴别H2、O2、CO2三种气体的方法是[ ]A.三种气体分别通过灼热的氧化铜B.将三种气体分别通过灼热的铜网C.将少量澄清的石灰水倒入集气瓶中、振荡D.将燃着的木条分别伸入三种气体中 查看答案
题型：单项选择题 在考生文件夹下，已有一个数据库文件“samp1.mdb”，其中已经建立了两个表对象“tGrade”和“tStudent”、宏对象“mTest”和查询对象“qT”。请按以下要求，完成设计。在“tStudent”表结构的最后一行增加一个字段，字段名为“家庭住址”，字段类型为“文本”，字段大小为40；删除“相片”字段。 查看答案