题干

下列各组顺序的排列不正确的是

A:离子半径:F->Na+>Mg2+>Al3+

B:热稳定性:HCl>H2S>PH3

C:酸性强弱:H2CO3<H3PO4<H2SO4

D:碱性强弱:NaOH>KOH>CsOH

上一题 下一题 0.0难度 选择题 更新时间:2014-12-04 04:47:05

答案(点此获取答案解析)

D

同类题3

根据短文内容回答问题


Dear Mike,

      I'm so glad you're coming to China! Your mother,our foreign English teacher,told me you're worried about what you should and shouldn't do as a guest in China.Here's some advice.You will probably be invited to a big meal. You may find it earlier than you expect because Chinese people eat dinner much earlier than people in the West.There will be a lot of different dishes,not just three courses.You may find it difficult to use chopsticks if you haven't tried before.It's a good idea to get some practice.When the food is served,you should take time to look at it. The preparation takes a long time and everything will look beautiful.The plates will be placed in the middle of the table,for everyone to share.Take a little of everything and then have some more of the things you like.Chinese people like to talk about food,so it's a good topic of conversation.At the end of the meal,you will usually be served with fruit.Eat your fruit,thank your friends, and go.

      I hope this is helpful.E-mail me if you have any other questions. 

                                                                                                                              Yours,

                                                                                                                                   David Zhang

同类题4

阅读下面的文言文,完成下列小题。

    王守仁,字伯安,余姚人。父华,成化十七年进士第一。华有器度,孝宗甚眷之。华性孝,士论多之。守仁娠十四月而生。祖母梦神人自云中送儿下,因名云。五岁不能言,异人拊之,更名守仁,乃言。登弘治十二年进士。正德元年冬,刘瑾逮南京给事中御史戴铣等二十余人。守仁抗章救,瑾怒,廷杖四十,谪贵州龙场驿丞。瑾诛,量移庐陵知县。入觐,迁南京刑部主事。

    十四年六月,命戡福建叛军。行至丰城而宁王宸濠反,知县顾佖以告。守仁急趋吉安,与伍文定征调兵食,治器械舟楫,传檄暴宸濠罪,俾守令各率吏士勤王。七月壬辰朔,宁王袭下九江、南康,薄安庆。或请救安庆,守仁曰:“不然。今九江、南康已为贼守我越南昌与相持江上二郡兵绝我后是腹背受敌也不如直捣南昌贼闻南昌破必解围自救逆击之湖中蔑不胜矣。”众曰“善”。宸濠果自安庆还兵。乙卯遇于黄家渡。明日,宸濠方晨朝其群臣,官军奄至。以小舟载薪,乘风纵火,焚其副舟。宸濠舟胶浅,仓卒易舟遁,王冕所部兵追执之。凡三十五日而贼平。

    帝时已亲征,命安边伯许泰为副将军,偕提督军务太监张忠将京军数千,溯江而上,抵南昌。忠、泰故纵京军犯守仁,或呼名谩骂。守仁不为动,抚之愈厚。病予药,死予棺,遭丧于道,必停车慰问良久始去。京军谓“王都堂爱我”,无复犯者。忠、泰轻守仁文士,强之射。徐起,三发三中。京军皆欢呼,忠、泰益沮。

    世宗甫即位,拜守仁南京兵部尚书。守仁不赴,请归省。守仁病甚,疏乞骸骨,举郧阳巡抚林富自代,不俟命竟归。行至南安卒,年五十七。

    守仁天资异敏。谪龙场,穷荒无书,日绎旧闻。忽悟格物致知,当自求诸心,不当求诸事物,喟然曰:“道在是矣。”遂笃信不疑。其为教,专以致良知为主。学者翕然从之,世遂有“阳明学”云。

(节选自《明史·王守仁传》)