题干
—How long does it take to go there?
—It ________ takes 20 minutes to get there by bus.
A：politely
B：seriously
C：normally
D：heavily
答案(点此获取答案解析）
C
2NH3(g)；△H＝－Q kJ·mol－1（Q＞0）。现有甲乙两个相同的密闭容器，向甲容器中充入1mol N2(g)和3mol H2(g)，在一定条件下达到平衡时放出的热量为Q1 kJ；在相同条件下向乙容器中充入2mol NH3(g)，达到平衡时吸收的热量为Q2 kJ。已知Q2＝3Q1，下列叙述中正确的是( )
