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【简答题】
熔化极惰性气体保护自动焊设备由哪几部分组成？
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举一反三
【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】羊毛截面结构沿纤维径向由外到内分为三层即( )层、 ( ) 层和 ( ) 层。其中 ( ) 层是羊毛主体,决定羊毛的性质。
【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
【单选题】用键盘输人字符“A”的正确操作是( )。
A.
在小写英文输人状态下,按字母键“A”
B.
在小写英文输入状态下,同时按下“Shift十A”键
C.
在大写英文输入状态下,按下“Caps Lock”键后再按“A”
D.
单击任务栏右端“EN”图标,选择拼音输入法后按“A”键
【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】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
【单选题】下列哪种方法不能产生大写字母？（）
A.
按住Shift键的同时输入字母
B.
按下CapsLock键以后输入字母
C.
在浮动的“控制板”中将小写字母改为大写
D.
选择“文字>文字样式>正常”就可以变成大写字母
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