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【单选题】
可逆反应：N 2 (g)+3H 2 (g) 2NH 3 (g)正反应放热，下列说法错误的是A.
使用催化剂可加快速率，提高生产效率
B.
N 2 不可能完全转化为NH 3
C.
增大H 2 浓度可提高N 2 转化率
D.
达平衡时，N 2 与NH 3 浓度比为1:2
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【单选题】Which of the following poems does not belong to Du Fu?
A.
Three Officers
B.
Three Partings
C.
Hard is the Road to Shu
【简答题】阅读理解。 Du Fu, the famous Tang Dynasty poet, is getting the business these days. In response to the 1,300th anniversary of the poet's birth, the meme, 'Du Fu is busy,' is spreading through the Internet ...
【单选题】—Have you read the poems ______ by Du Fu? —Of course, many of them.
A.
wrote
B.
writing
C.
named
D.
written
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