题干
— Have you seen this film?
— ___________. I have no time.
A：Ever
B：Never
C：No, I don't
D：Yes, I have.
答案(点此获取答案解析）
B
— Have you seen this film?
— ___________. I have no time.
A：Ever
B：Never
C：No, I don't
D：Yes, I have.
和
充人恒容密闭容器中，恒温下发生反应： H2(g)+Br2(g)
2HBr(g) ⊿H <0,平衡时