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【单选题】
下列事实不能用勒夏特列原理解释的是A.
温度控制在500℃有利于合成氨反应
B.
实验室中常用排饱和食盐水的方法收集Cl 2
C.
将相同体积、相同pH盐酸与醋酸分别稀释相同倍数，后者的pH变化值小于前者
D.
打开碳酸饮料会有大量气泡冒出
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举一反三
【单选题】革兰染色所用试剂的顺序是
A.
稀释复红—碘液—酒精—结晶紫
B.
结晶紫—酒精—碘液—稀释复红
C.
结晶紫—碘液—酒精—稀释复红
D.
稀释复红—酒精—结晶紫—碘液
E.
稀释复红—结晶紫—碘液—酒精
【简答题】(请将以下段落翻译成中文)The regulations make it safer for you to use your credit card for shopping on the Internet or over the phone. If someone else makes dishonest use of your credit card , you can cancel the ...
【简答题】Tony is very disappointed _______ ?Tony is very disappointed _______ the results of the exam. A) with B) for C) toward D) on
【单选题】革兰染色所用试剂的顺序是
A.
结晶紫—碘液—酒精—稀释复红
B.
稀释复红—碘液—酒精—结晶紫
C.
稀释复红—酒精—结晶紫—碘液
D.
稀释复红—结晶紫—碘液—酒精
E.
结晶紫—酒精—碘液—稀释复红
【简答题】Please yze the features of the following EST paragraph. Pictures can be stored in the camera’s internal memory (about 14 MB) or on the Secure Digital (SD) memory card. If no memory card has been i...
【单选题】革兰染色所用试剂的顺序是
A.
复红→碘液→酒精→结晶紫
B.
结晶紫→酒精→碘液→复红
C.
结晶紫→碘液→酒精→复红
D.
复红→酒精→结晶紫→碘液
E.
石炭酸复红→3%盐酸酒精→美兰
【简答题】Seeing his Chinese teacher at the party made Tony very happy. Tony was very happy ______ his Chinese teacher at the party.
【单选题】革兰染色所用试剂的顺序是
A.
稀释复红→碘液→酒精→结晶紫
B.
结晶紫→酒精→碘液→稀释复红
C.
结晶紫→碘液→酒精→ 稀释复红
D.
稀释复红→酒精→结晶紫→碘液
【单选题】革兰染色所用试剂的顺序是
A.
稀释复红、碘液、乙醇、结晶紫
B.
结晶紫、乙醇、碘液、稀释复红
C.
结晶紫、碘液、乙醇、稀释复红
D.
稀释复红、乙醇、结晶紫、碘液
E.
稀释复红、结晶紫、碘液、乙醇
【单选题】Tony was very angry and _______the ball away.
A.
throw
B.
threw
C.
has thrown
D.
has been thrown
相关题目：
【单选题】革兰染色所用试剂的顺序是
A.
复红→碘液→酒精→结晶紫
B.
结晶紫→酒精→碘液→复红
C.
结晶紫→碘液→酒精→复红
D.
复红→酒精→结晶紫→碘液
E.
石炭酸复红→3%盐酸酒精→美兰
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