13.下列各句中加点成语的使用,错误的一项是( ) A.依我的能力,承担这份工作实在是绠短汲深,但大家既然信任我,我只能勉力而为
下列关于动植物激素的阐述,正确的是 A.激素的作用都具有两重性 B.激素都是信息分子 C.激素都直接参与细胞内多种生命活动
Millions of pounds' worth of damage _____ by a storm which swept across the north of England last nigh A. has been caused B. had been caused C. will be caused D. will have been caused
被称之为“软电池”的纸质电池,采用一个薄层纸片作为传导体,在其一边镀锌,而在其另一边镀二氧化锰。在纸内的离子“流过”水和氧化锌组成的
下列物质敞口放置于空气中,质量会增加的是 A.食盐水 B.石灰石 C.浓盐酸 D.浓硫酸
I had neither a raincoat nor an umbrella. _______ I got wet through. A. It’s the reasonB. That’s why C. There’s whyD. That’s because
For him __________ stage is just __________ means of making a living. A. a; a B. the; a C. the; the D. a; the
有人这样比喻政府机构中的分工和职责:蝗虫飞在天上,农业部门要管;落在树上,林业部门要管;趴在草丛里,畜牧部门要管;飞到公园,城建部门