多发生于全结肠 A.克罗恩病 B.肠结核 C.溃疡性结肠炎 D.小肠憩室 E.平滑肌 发布时间:2017-07-07 08:41 │ 来源:www.tikuol.com 题型:单项选择题 问题: 多发生于全结肠A.克罗恩病B.肠结核C.溃疡性结肠炎D.小肠憩室E.平滑肌瘤
题型:单项选择题 根据下列反应判断有关物质还原性由强到弱的顺序是H2SO3+I2+H2O==2HI+H2SO4 2FeCl3+2HI==2FeCl2+2HCl+I2 3FeCl2+4HNO3==2FeCl3+NO↑+2H2O+Fe(NO3)3 [ ]A.H2SO3>I->Fe2+>NO B.I->Fe2+>H2SO3>NO C.Fe2+>I->H2SO3>NO D.NO>Fe2+>H2SO3>I- 查看答案
题型:单项选择题 根据对话内容,选择适当的句子补全对话。A.How do you know about it? B.Let me write it down. C.Right? D.What about you? E.Why not give him a call? Peter:What are you doing here,Emily?Emily:I'm reading a book.Peter:A book on computer. 1 Emily: 2 Peter:I heard that you bought a computer last week.Emily:Yes,but I can't use it. 3 Peter:Neither can I. You'd better ask for Nick's help.He bought one two years ago and knows a lot.Emily:He's always busy.It's difficult to meet him.Peter: 4 Emily:I don't know his telephone nmber.Peter:I can tell you.Emily:Wait a minute. 5 Say,please.Peter:3860531.Emily:OK,Thank you.1.____ 2.____ 3.____ 4.____ 5.____ 查看答案
题型:单项选择题 下图是周期表中短周期的一部分,若a原子最外层电子数比次外层少了3个,则下列说法不正确的是A.a与c不能形成化合物B.氢化物比的稳定性:d>bC.原子半经的大小顺序是:c>b>a>dD.a、b、c的最高价氧化物对应水化物的酸性强弱的关系是:c>b>a 查看答案