A:上述反应的原子利用率可达到100%
B:在核磁共振氢谱中对羟基扁桃酸应该有6个吸收峰
C:对羟基扁桃酸可以发生加成反应、取代反应和缩聚反应
D:lmol对羟基扁桃酸与足量NaOH溶液反应,消耗3 mol NaOH
选项
起始状态/mol
N2
H2
NH3
A
2
0
B
2.5
1.5
1
C
83
23
D
根据所给提示,完成句子。每空一词,含缩略词。There was a football match on TV last night.(变为一般疑问句)____ a football match on TV last night ?He’s been in China since ten years ago.(变为否定句)He ____ in China since ten years ago.Tom got up early in order to catch the first bus to Chongqing.(同义句)Tom got up early ____ he could catch the first bus to Chongqing.Steve will finish his book in a month. (对划线部分提问)____ will Steve finish his book?____ 邮件英语是一种为了节约时间而正在被使用的书面语。(完成句子)E-mail English is a kind of _______ English which is being used to ______ time.