—Whydidn'tyoucometoMike'sbirthdaypartyyesterday?—Well,I...
问题详情:
—Why didn't you come to Mike's birthday party yesterday?
—Well,I________but I forgot it.
A.should B.must
C.should have D.must have
【回答】
C
知识点:虚拟语气与情态动词
题型:选择题
-
在探究“光对鼠妇生活的影响”实验中属于变量的是( )A.温度 B.湿度 ...
问题详情:在探究“光对鼠妇生活的影响”实验中属于变量的是( )A.温度 B.湿度 C.光照 D.土壤【回答】C知识点:生物圈是最大的生态系统题型:选择题...
-
下列反应的离子方程式正确的是( )A.在碳**镁溶液中加入足量Ca(OH)2溶液:Mg2++2HCO3-+C...
问题详情:下列反应的离子方程式正确的是( )A.在碳**镁溶液中加入足量Ca(OH)2溶液:Mg2++2HCO3-+Ca2++2OH-=MgCO3↓+CaCO3↓+2H2OB.电解饱和食盐水:C.过量的铁与浓**反应: Fe+6H++3NO3-=Fe3+十3NO2↑+3H2OD.向硫*铝铵[NH4Al(SO4)2]溶液中滴加足量Ba(OH)2溶液 NH4++Al...
-
在恒温、体积为2L的密闭容器中进行反应:2A(g)⇌3B(g)+C(g),若反应物在前20sA物质由3mol降...
问题详情:在恒温、体积为2L的密闭容器中进行反应:2A(g)⇌3B(g)+C(g),若反应物在前20sA物质由3mol降为1.8mol,则前20s的平均反应速度为()A.v(B)=0.03mol/(L•s)B.v(B)=0.045mol/(L•s)C.v(C)=0.03mol/(L•s)D.v(C)=0.06mol/(L•s)【回答】考点:化学反应速率和化学计量数的关系.专题:化学反应速率专...
-
光明在低头的一瞬 ...
问题详情: 光明在低头的一瞬 迟子建 ...
相关文章
- —Imustsaygoodbyetoyou.Ifeelveryupset.—Cheerup! Itwon'tb...
- 【2019•山东省滨州市】—Whichmonthoftheyeardoyoulikebest?—July,th...
- —MayIborrowyourdictionary,Helen?—Sorry,it'snothere.Tiny...
- —Whydon'tyoubuyacamera?—DoyouthinkIneedto?Myphoneisofte...
- —MayIborrowyourdictionary,Helen?—Sorry,it'snothere.Tiny...
- —MayIborrowyourdictionary,Helen?—Sorry,it'snothere.Tiny...
- —Whydidn'tyougotothemovieyesterday?—BecauseI
- —Doyouthinkyesterday'smathproblemwasdifficult?—Yes,Icou...
- —It'smytreattoday.Isthereanyparticularmealyouwouldliket...
- —MayIborrowyourdictionary,Helen?—Sorry,it'snothere.Tiny...