单选题

奥运期间,帅boy和美girl们每天早上五点就会起来背化学公式,而丑的人八点以后才被尿憋醒去嘘嘘,其中尿素[CO(NH2)2]约为0.03mol/L。这里衡量尿素含量的物理量是()

A. 溶解度
B. 物质的量浓度
C. 质量分数
D. 摩尔质量

查看答案
该试题由用户573****58提供 查看答案人数:32788 如遇到问题请 联系客服
正确答案
该试题由用户573****58提供 查看答案人数:32789 如遇到问题请联系客服

相关试题

换一换
热门试题
In the west the birth of a girl is welcomed with enthusiasm________to that of a boy. ④在坐班期间,你发现邻座的女老师每天早上 10 点上班,下午 4 点半下班打卡。据此你可以推断出她至少入职() Who’s your best friend? Is ____ a boy or a girl?—A boy. I often play with _____ after school. There was no significant difference between a girl and a boy _______ the structure and function of their brains. I _____a girl,and Tony______a boy, we(我们)____friends. ______ they had 3 children of their own, the old couple decided to ____ a boy and a girl[ ] This story is about ______ a boy managed to save a little girl in the earthquake.   早上到店的工场熟包每天早上11:00点必须要打包好售卖,16:00前要落架() The boy looks nice _______ white and the red sweater looks good _______ the girl. [ ] What is the collocative meaning of the word pretty in pretty girl/ boy/ woman/color? The old couple decided to ________ a boy and a girl though they had three of their own. The old couple decided to()a boy and a girl though they had three of their own. 每天早上起来觉得都充满希望,说明你的幸福感水平还不错。 每天早上从东方升起,西方落下,猜一种五个字的东西?? ____ to the surprise of the teachers, the naughty boy turned out to be the person who saved the dying girl The boy is the equal of the girl, _____ intelligence is concerned, but he doesn’t work hard at all Will you go to the show next Monday? — YesEvery boy and every girl in the area _____ invited 中国大学MOOC: The girl drank coffee the boy drank tea. The old couple decided to ____ a boy and a girl though they had three children of their own. Every boy and every girl _____ here. Let’s have the meeting.
购买搜题卡 会员须知 | 联系客服
会员须知 | 联系客服
关注公众号,回复验证码
享30次免费查看答案
微信扫码关注 立即领取
恭喜获得奖励,快去免费查看答案吧~
去查看答案
全站题库适用,可用于E考试网网站及系列App

    只用于搜题看答案,不支持试卷、题库练习 ,下载APP还可体验拍照搜题和语音搜索

    支付方式

     

     

     
    首次登录享
    免费查看答案20
    微信扫码登录 账号登录 短信登录
    使用微信扫一扫登录
    登录成功
    首次登录已为您完成账号注册,
    可在【个人中心】修改密码或在登录时选择忘记密码
    账号登录默认密码:手机号后六位