Ifyou yourteacher’sadvice,youwouldnothavefailedt...
問題詳情:
If you your teacher’s advice, you would not have failed the exams last week.
A. take B. were taking C. took D. had taken
【回答】
D
知識點:虛擬語氣
題型:選擇題
-
近日我州某地成功處置了一輛滿載三*化*(PCI3)的車輛泄漏事故.三*化*是一種重要的無機鹽工業產品,無*液體...
問題詳情:近日我州某地成功處置了一輛滿載三*化*(PCI3)的車輛泄漏事故.三*化*是一種重要的無機鹽工業產品,無*液體、密度1.574g/cm3(21℃),熔點﹣112℃,沸點75.5℃,易燃.遇水反應生成亞**(H3PO3)和*化*,與有機物接觸會着火.下列對三*化*的說法錯誤的是()A.三*化*中*元素的化合價爲+...
-
在恆溫、體積爲2L的密閉容器中進行反應:2A(g)⇌3B(g)+C(g),若反應物在前20sA物質由3mol降...
問題詳情:在恆溫、體積爲2L的密閉容器中進行反應:2A(g)⇌3B(g)+C(g),若反應物在前20sA物質由3mol降爲1.8mol,則前20s的平均反應速度爲()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】考點:化學反應速率和化學計量數的關係.專題:化學反應速率專...
-
設複數(是虛數單位),則複數的虛部爲( )A. B. C. ...
問題詳情:設複數(是虛數單位),則複數的虛部爲( )A. B. C. D.【回答】B知識點:數系的擴充與複數的引入題型:選擇題...
-
反比例函數與直線相交於點點的橫座標爲,則此反比例函數的解析式爲( ) A. ...
問題詳情:反比例函數與直線相交於點點的橫座標爲,則此反比例函數的解析式爲( ) A. B. C. D.【回答】C;知識點:反比例函數題型:選擇題...
相關文章
- Ifyou’reunabletocometotheinterview,youshould usi...
- You’llneverguesswhoImettoday—myoldteacher!We for20yea...
- Youhaveputonfivekilogramsrecently.You’dbetter
- You’dbetterfixthemachine Ihavetoldyou.Otherwise,youma...
- It’sverykindofyoutodothecleaningforme,butyou
- Idon’tlikethecoloroftheshoes. Would youpleasegiveme
- Whendidyoulastsay“Iloveyou"toyourfather?Ifyoucan'tre...
- Nomatterhowdifficult,youshouldn’t . A.giveupit ...
- —Youmustbelieveyourself. Idon’thelpyou,youcans...
- you’vetriediton,youcan’timaginehowbeautifulthenews...