听力原文:M: what do you think of the final exam ? W: I thought it would be easy, but at the end of the first hour, I was still on the first page. I hardly had time to get to the last page. What can we conclude from the talk?
【简答题】What do you usually do in your free time? Play sports? Watch TV? How about reading books? You must know the Chinese saying: ' Read thousands of books; travel thousands of miles ' .Books are important ...
【单选题】Use the following information to answer questions, assuming the same temperature for all questions.(假设所有问题的温度相同,根据以下信息回答问题。) 3 H 2 (g) + N 2 (g) ⇋ 2 NH 3 (g), K c = 60 If the reaction quotient for the...
A.
H 2 , N 2 increase; NH 3 decrease(H 2 和N 2 的浓度增加,NH 3 的浓度减小。)
B.
H 2 , N 2 decrease; NH 3 increase(H 2 和N 2 的浓度减小,NH 3 的浓度增加。)
C.
H 2 , NH 3 decrease; N 2 increase(H 2 和NH 3 的浓度减小,N 2 的浓度增加。)