【单选题】How did the teacher think of Babara's performance?
A.
She thought it was wonderful.
B.
She thought it was the best.
C.
She thought it was awful.
【单选题】下列说法中,不正确的是( )
A.
加入适当催化剂可以改变化学反应速率,但不可提高反应物的转化率
B.
放热反应的反应速率一定比吸热反应的反应速率大
C.
相同条件下,等体积的H 2 和空气含有相同数目的分子
D.
常温常压下,1molN 2 和28gCO含有相同的原子数
【简答题】Ant
colonies are successful because .A. all the ants know what’s best for the group B. the queen is a strong leader C. each ant does something useful
【单选题】下列说法中,不正确的是 [ ]
A.
加入适当催化剂可以改变化学反应速率,但不可提高反应物的转化率
B.
放热反应的反应速率一定比吸热反应的反应速率大
C.
相同条件下,等体积的H 2 和空气含有相同数目的分子
D.
常温常压下,1molN 2 和28gCO含有相同的原子数
【简答题】My brother-in-law opened the bottom drawer of my sister's bureau(衣橱) and picked out a wonderful skirt. 'Jan bought this the first time we went to New York, at least 8 or 9 years ago. She never wore it...
【多选题】关于BPL1单板能力,下面说法正确的是: