It's required that mineral resources________hand in hand with the local environment protection. A.be exploited B.exploit C.have exploited D.exploited
某同学根据铜绿的成分Cu2(OH)2CO3作出猜想:金属铜锈蚀的条件除有氧气和水外,还必须有二氧化碳。为证明“必须有二氧化碳”,需要进行如图所示
— Do you think Brazil will beat Japan in the next match? — Yes, they have better players, so I ________ them to win. A. hope B. except
下面对名著名篇的说明,不正确的两项是( )( ) A.“金陵十二钗”指贾府或和贾府有关系的十二个女性主子,其中年龄最小,辈分也最小
23、明代杰出画家徐渭的《黄甲图》,图中肥阔的荷叶已开始凋零,一只螃蟹缓缓爬行,留出大片空白表示秋水,荷叶墨色淋漓,画蟹形状虽夸张,却饶
设计实验方案是科学探究的重要环节,以下化学实验设计中,不能达到实验目的的是A.厨房中用食醋鉴别纯碱和食盐 B.用AgNO3溶液鉴别H2
He looked around and caught a man ______ his hand into the pocket of a passenger. A. put B. to be putting C. to put D. putting
哺乳动物如牛、羊等是人类生活中一种重要的肉制品、皮毛制品的原料来源,但哺乳动物妊娠时间长,每胎产子数少、繁殖速度比较慢。要加快良种畜