分别燃烧下列各组物质中的两种化合物,所得CO2和H2O的物质的量之比相同的有[

题型:不定项选择题

问题:

分别燃烧下列各组物质中的两种化合物,所得CO2和H2O的物质的量之比相同的有[ ]

A.乙烯、丁二烯

B.乙醇、乙醚

C.苯和苯酚

D.醋酸、葡萄糖

考点:有机化学的有关计算
题型:不定项选择题

患者,男,70岁。喘促气短,声低气怯,咳声低弱,咳痰稀白,自汗畏风,舌淡红苔薄白,脉弱无力。治疗应首选

A.三子养亲汤合二陈汤
B.生脉散合补肺汤
C.七味都气丸合生脉散
D.参蛤散合金匮肾气丸
E.苏子降气汤合二陈汤

题型:不定项选择题

I live in Albuquerque and I used to give much money to the homeless around, feeling sorry for their misfortune(不幸). But later I became a single mom with no home, a huge  1 and hardly any income.  2 , I stopped giving and became very bitter(痛苦).
Several years later, things started to 3 . I became 4  enough to have a home, and 5  a backyard, and I started to pull myself out of debt. One day we saw a homeless person with the , “ Will work for food. ” I  7. My daughter asked why I no longer helped the people in  8 . I replied, “ Honey, they just use that money for 9 or other bad things. ” She didn’t respond. But when I said that, it didn’t feel right.
Three days later, I was 10 to pick up my daughter from school. A man was standing on the corner and something deep inside 11 me to help him. So I stopped my car , and he ran over with enthusiasm. He said, “ God bless you, I only need 77 cents. ” I 12  into my ashtray and  13 enough, there was three quarters and two pennies.
Greatly shocked by this 14 , I gave him all the money in the ashtray. He 15 with joy and tears in his eyes, “ You just made it 16 for me to see my mom for Christmas ! The bus offering this great sale is 17 right away ! ” It was a moment I’ll never forget. I think that man won’t forget it either, but I was the one who got the best 18  in life giving. It also 19 me that nothing is a coincidence(巧合), 20 everything has meaning.
小题1:
A.debtB.dutyC.incomeD.pressure
小题2:
A.In factB.In a wordC.As a resultD.All in all
小题3:
A.developB.worsenC.showD.change
小题4:
A.unfortunateB.richC.generousD.unsuccessful
小题5:
A.evenB.stillC.yetD.only
小题6:
A.wordB.expressionC.signD.letter
小题7:
A.got toB.walked toC.passed inD.passed by
小题8:
A.emergencyB.dangerC.needD.panic
小题9:
A.foodB.alcohol(酒)C.medicineD.music
小题10:
A.drivingB.jogging(慢跑C.wanderingD.cycling
小题11:
A.preventedB.challengedC.permittedD.drove
小题12:
A.reachedB.turnedC.brokeD.searched
小题13:
A.jokinglyB.strangelyC.happilyD.naturally
小题14:
A.accidentB.conditionC.stateD.coincidence
小题15:
A.put outB.turned outC.broke outD.burst out(大声喊)
小题16:
A.necessaryB.difficultC.possibleD.suitable
小题17:
A.liningB.leavingC.gettingD.operating
小题18:
A.giftB.timeC.favorD.honor
小题19:
A.thinksB.informsC.persuadesD.reminds
小题20:
A.orB.andC.soD.however
题型:不定项选择题

电流互感器为什么不允许开路?开路后应如何处理?

题型:不定项选择题

国务院决定从2006年起,每年6月的()为中国的“文化遗产日”。

题型:不定项选择题

关于奥运会主办城市的规定,正确的是?()

A.遴选主办城市是国际奥委会的独特权利

B.如果一个国家有几个城市同时申办,可以一起提交给国际奥委会

C.如果由于地理原因无法举办某些分项比赛,国际奥委会可以安排到邻近国家举行

D.奥运会期间或前后一周内不能在邻近城市举行其他全国性或国际性重大活动

更多题库