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【多选题】
下列有关随机误差的表述正确的是：A.
随机误差具有单向性
B.
随机误差是由一些不确定的偶然因素造成的
C.
随机误差在分析过程中是不可避免的
D.
绝对值相等的正、负随机误差出现的概率相等
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举一反三
【单选题】______words and expressions have come into the English language from American English. [ ]
A.
A large amount of
B.
Masses of
C.
A great deal of
D.
Many a
【简答题】There are hundreds of funny and strange expressions in the English language. A lot of them include country names or nationalities. Take these examples: The Dutch（丹麦人）are the target of most English exp...
【简答题】Each week, this program explains the many meanings of English expressions. Today’s expressions include a very important word—“heart”. We will try to “get to the heart of the matter” to better understa...
【判断题】English expressions that are literally translated from Chinese are all incorrect and not acceptable.()
A.
正确
B.
错误
【单选题】— English has large vocabulary, hasn't it? — Yes. ______ more English and expressions and you will find it easier to read and communicate. [ ]
A.
Know
B.
Knowing
C.
To know
D.
Known
【单选题】Her English is ______ better than mine, for she knows ______ English words and expressions than I do.
A.
very, much more
B.
far, many more
C.
quite, rather more
D.
much, much more
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