紧急避孕药物在无保护措施的性生活后什么时限内服用?()
A.1日
B.2~3日
C.3~5日
D.5~7日
E.5~10日
参考答案:B
软土基坑施工中,为防止边坡失稳,保证施工安全,通常采取措施有( )。
A.采取合理坡度
B.设置边坡护面
C.基坑支护
D.抬高地下水位
E.降低地下水位
In the following essay, each blank has four choices. Choose the best answer and write down on the answer sheet.
A Web browser is simply a terminal emulator, designed to display text on a screen. The two essential differences between an ordinary terminal emulator and a Web browser are that the browser knows how to deal with (1) , and that it has a mechanism for (2) graphical files. Display text, display graphics, and (3) hyperlinks ——there’s 99 percent of the (4) value. That’s not to say that the manufacturers didn’t go all - out to attach a hyperactive efflorescence of useless capabilities onto their browsers. Remember when media channels in the browser were a big deal, instead of the clutter you can’t wait to delete from your favorites of bookmarks menu Remember when client -side Java applets were supposed to become the preferred (5) , for application development Remember frames and all their nasty side effects
2()
A.displaying
B.illustrating
C.drawing
D.writing