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【单选题】
按河水流向与岩层产状的关系而论,单斜谷属于( )A.
顺向河
B.
斜向河
C.
走向河
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【单选题】Want to Be 100? Listen to These 5 Centenarians(百岁老人) Five neighbors at a central Missouri retirement community who are all centenarians get asked all the time: 'How did you live to be 100?' If you wan...
A.
Right
B.
Wrong
C.
Not mentioned
【简答题】“Millions of young people will lose their hearing in five years if they listen to MP3 or MP4 players at a too high voice every day,” scientists say recently. Do you often listen to MP3 players at a to...
【简答题】Listen to the five words and write them down
【简答题】Listen to five conversations and answer the questions.
【单选题】It is said that ____ young people may lose the abilities to hear after five years if they listen to MP4 players which are too loud for more than five hours a week.
A.
thousand of
B.
six thousands
C.
thousands of
D.
six thousands of
【简答题】阅读理解。 'Millions of young people will lose their hearing in five years if they listen to MP3 or MP4 players at a too high voice every day,' scien tists say recently. Do you often listen to MP3 players ...
【单选题】要检查给定的键名是否存在数组中可以使用( )
A.
array_key_exists()
B.
array_keys()
C.
array_values()
D.
in_array()
【单选题】Millions of youngsters across Europe could suffer ____ hearing loss after five years if they listen to MP3 players at too high a volume for more than five hours a week, EU scientists warned.
A.
temporary
B.
permanent
C.
frequent
D.
extraordinary
【简答题】Listen to five conversations and answer the questions.
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