【单选题】【消耗次数：1】
They dont____________ the importance of this problem.
①
understands
②
understood
③
understanding
④
understand
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【单选题】
It is_________ to memorize something you dont understand.
①
easy
②
difficult
③
beautiful
④
wonderful
【判断题】
阅读课文II.How to Improve Memory,判读正误5.It is easy to memorize something you dont understand.
①
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②
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【判断题】
阅读课文II.How to Improve Memory, 判断下列句子表述内容的正误:It is easy to memorize something you dont understand.
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【判断题】
答题说明：句子没有语法错误请选择“正确”，有语法错误请选择“错误”It is difficult to memory something you dont understand.
①
正确
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【单选题】
There can be no ( ) understanding without communication between people.
①
mutually
②
mutuality
③
mutual
④
mutualism
【判断题】
An effective precis is based on precise and thorough reading and understanding of the article.
①
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②
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【单选题】
It was____ then that I realized the importance of a good mastery of the language.
①
until
②
unless
③
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④
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【单选题】
The exchange of goodwill mission greatly ______ a better understanding between the two countries.
①
carries out
②
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③
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【单选题】
19. Water will continue to be ____ it is today —next in importance to oxygen.
①
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③
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