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【单选题】
将牛奶和姜汁混合,待牛奶凝固便成为一种富有广东特色的甜品——姜撞奶。为了掌握牛奶凝固所需的条件,某同学将不同温度的等量牛奶中混入一些新鲜姜汁,观察混合物15 min,看其是否会凝固,结果如下表: 根据以上姜汁使牛奶凝固的结果,下列表述不正确的是( )A.
可证明新鲜姜汁含有一种酶,该酶能将可溶状态的牛奶蛋白质转化成不溶状态
B.
20 ℃和100 ℃时酶的活性低, 是因为酶的分子结构遭到破坏而失去活性
C.
将等量姜汁在不同温度下保温后再与对应温度的牛奶混合,能够提高实验的准确度
D.
60 ℃和80 ℃不一定是酶的最适温度, 缩小温度范围,增加温度梯度才可得到最适温度
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【单选题】I will go home for the vacation as soon as I______ my exams.
A.
will finish
B.
finished
C.
am finishing
D.
have finished
【单选题】I will go home for a vacation the moment I ________ my thesis.
A.
am finished
B.
finish
C.
had finished
D.
finished
【单选题】听力原文：M: The service in this restaurant is too terrible. W: Right. It's high time they got rid of haft of the staff here, If you ask me. What conclusion can we draw from the conversation?
A.
Both speakers think haft of the staff are efficient.
B.
The man has an unfavorable opinion of the staff, but the woman does not.
C.
Neither of them has a favorable opinion of the staff.
D.
The woman is a restaurant manager herself.
【单选题】I will go home for the vacation as soon as I have finished my exams.
A.
will finish
B.
am finishing
C.
am going to finish
D.
finish
【单选题】I will go home for a vacation as soon as I ________my exams.
A.
am finished
B.
finish
C.
will finish
D.
finished
【单选题】I will go home for a holiday as soon as I______my exam.
A.
am finished
B.
had finished
C.
finished
D.
finish
【简答题】请写出应用文的概念
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