文语站Theriverswillbecomedirtieranddirtier
问题详情：
The rivers will become dirtier and dirtier ______ we take action to protect them.
A. since B. if C. until D. Unless
【回答】
D
知识点：连词
题型：选择题
![下列关于名著的表述，不正确的一项是 ( )A．贾政望...]( "下列关于名著的表述，不正确的一项是 ( )A．贾政望...")
下列关于名著的表述，不正确的一项是 ( )A．贾政望...
问题详情： 下列关于名著的表述，不正确的一项是 ()A．贾政望子成龙，宝玉却无心仕途经济。平时宝玉在外私结伶人，与母婢金钏又有说不清的嫌疑，会见冷子兴时的无精打采，终于使贾政大为失望，于是对宝玉大打出手。(...
![—Thestateofillnessiscomplicated．Weneedanexperienceddoct...]( "—Thestateofillnessiscomplicated．Weneedanexperienceddoct...")
—Thestateofillnessiscomplicated．Weneedanexperienceddoct...
问题详情：—Thestateofillnessiscomplicated．Weneedanexperienceddoctor．—Whomwouldyouliketohave____? A.sentfor B.sendfor C.tosendfor D.beens...
![OnlyMotherLoveistruelove.Itgiveseverybodyeverythingallh...]( "OnlyMotherLoveistruelove.Itgiveseverybodyeverythingallh...")
OnlyMotherLoveistruelove.Itgiveseverybodyeverythingallh...
问题详情：OnlyMotherLoveistruelove.Itgiveseverybodyeverythingallh 1 life.Whenyouarestillababy,mothertakesgoodcareofyouasmuchasp 2 .Inyourw 3 hoursshealwaysholdsyouinherarms.Whenyouareill,shestopsherworkrigh...
![．已知各项均不为零的数列{an}，定义向量．下列命题中真命题是（ ）A．若∀n∈N*总有cn⊥bn成立，则数...]( "．已知各项均不为零的数列{an}，定义向量．下列命题中真命题是（ ）A．若∀n∈N*总有cn⊥bn成立，则数...")
．已知各项均不为零的数列{an}，定义向量．下列命题中真命题是（ ）A．若∀n∈N*总有cn⊥bn成立，则数...
问题详情：．已知各项均不为零的数列{an}，定义向量．下列命题中真命题是（）A．若∀n∈N*总有cn⊥bn成立，则数列{an}是等比数列B．若∀n∈N*总有cn∥bn成立成立，则数列{an}是等比数列C．若∀n∈N*总有cn⊥bn成立，则数列{an}是等差数列D．若∀n∈N*总有cn∥bn成立，则数列{an}是等差数列...
相关文章
- IclimbedKilimanjarowithLavaExpeditions(探险队)duringtherai...
- —We'redoingreallywellthisterm.Webelievewewillwin!—
- Ifyouareatraditionaltravellerwhobelievescamerasareirrep...
- I'vetriedeverydiettolosesomeweight,butIfailedeverytime....
- 改错：Idon'tmindwhereIliveunlessthereismyfavoritejob.
- Itsurprisedme—everytimeIsawJoe，hewassmiling．Itdidn’t
- Experienced⁃BasedEducationEveryoneisfamiliarwithtraditi...
- 完形填空。LisaandMikewerecelebratingtheiranniversary(周年纪念日)....
- LastweekendIvisitedRomeforthefirsttime.Ispentthreebusyd...
- Timeisveryimportantinourlife．However，Ihadneverrealizedi...