在下列AWT的基本构件中，哪一个为下拉式菜单组件的名称A． Button B． Ch 发布时间：2017-06-03 20:40 │ 来源：www.tikuol.com 题型：单项选择题 问题： 在下列AWT的基本构件中，哪一个为下拉式菜单组件的名称A． ButtonB． ChoiceC． LabelD． Scroll
题型：单项选择题 补全对话：根据对话内容，从对话后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。A: Where have you been, Fang Li? I called you, but you weren't in your office.B: 1_ A: What did you do there?B: I found out that the factory was pouring waste water into the river near it._ 2 . Lots of fish have died.A: 3 _ .B: Do you think "Greener China" can do something?A:_ 4_ . We can write a story about it to the TV station and the newspaper. B: 5_ . Businessmen are afraid of newspapers and TV stations. A. I've gone to a paper factory. B. That would be fine.C. That's terrible! D. Yes, of course.E. Good idea! F. The river has become very dirty.G. I've been to a paper factory. 查看答案
题型：单项选择题 背景资料：某石油化工企业在A省B市C县的一天然气生产矿井发生了井喷事故。井喷后作业人员应急处置不当，含有H2S的有毒气体向下风向扩散，造成周围群众13人死亡，105人急性中毒。生产矿井发生井喷的物质中含有H2S的有毒气体，该有毒气体是危险源。 查看答案