如果把分式中的x和y都扩大2倍，那么分式的值( )． A．不变 B．扩大2倍 C．扩大4倍
With some snow on top of it,the Yellow Mountain looked fantastic this winter.Actually, I doubt whether we could visit ______mountian in China. A. a most beautiful B.the most beautiful
下列反应属于分解反应的是 A．石蜡+氧气二氧化碳+水B．氢气+氯气氯化氢C．铁+硫酸硫
. Barry hid himself behind the door, from __________ he could hear the steps of his father clearly. A. which B. that C. when
函数的最小值是 ( ) A.1 B.2 C.-3 D.-2
在我国政府的大力支持下，以“和谐世界，众缘和合”为主题的第二届“世界佛教论坛”，于2009年在浙江无锡和宝岛台湾举行。世界各地三千余名高僧
下面是一则招聘启事，在语言运用方面有多处错误，请指出其中五处并改正。 招聘启事 中新社海外中，系中国新闻社旗下对海外华文报纸提
---What’s wrong with you, Dave? ---My homework can’t be __________ on time because I’ve left it at home. A. given out B. got over C. showed up D. handed in
