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【单选题】
下列各项中, 不属于KMnO4溶液标定条件的是A.
用新煮沸的冷纯化水溶解基准物Na2C2O4
B.
标定反应H2SO4酸性条件下进行
C.
标定温度应不低于65℃
D.
加入催化剂， 提高反应速度
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【简答题】原码的编码规则是:最高位代表 ,其余各位是该数的 。
【单选题】— What should I pay attention to when I write an application letter? — Try to be _________. Don’t let out information unnecessary to the company unless it favors your getting the job.
A.
brief
B.
actual
C.
accurate
D.
original
【单选题】When I try to understand ________ that prevents so many children from being happy, there seem to be three causes.
A.
why it is
B.
what it does
C.
why it does
D.
what it is
【单选题】I was about to give up when it suddenly ________ to me that I should try to solve the problem in another way. [ ]
A.
referred
B.
adapted
C.
occurred
D.
adjusted
【单选题】听力原文：I try to eat less when I am on a tight schedule. (A) Yes, I saw that too on a diet program. (B) I also get drowsy if I have a big meal. (C) The restaurant is so crowded whenever I go there. (6)
A.
B.
C.
【单选题】When I try to understand ________ that prevents so many Americans from being as happy as one might expect, it seems to me that there are two causes.
A.
why it does
B.
what it does
C.
what it is
D.
why it is
【简答题】原码的编码规则是:最高位代表_______,其余各位是该数的尾数本身。
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