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起始密码子是( ),终止密码子有( )( )( )。
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【简答题】课文语法选择。 I was not feeling very well so the doctor checked my heart and said I needed more exercise.I have never been very 1 , and I do not like sports.I have always wanted a pet, 2 my parents gave ...
【单选题】在使用ie访问网页时,怎样访问刚才访问过的页面
A.
点击停止按钮
B.
点击前进按钮
C.
点击刷新按钮
D.
点击后退按钮
【单选题】电流触及人体,使人体外部创伤的触电称为()。
A.
烧伤
B.
电伤
C.
电击
【单选题】C级分隔是指________。I.用认可的不燃材料制成;II.经标准耐火试验后能防止烟及火焰通过;III.限制背火面的温升;IV.允许使用厚度不超过2.5mm的可燃装饰板。
A.
Ⅰ,Ⅳ
B.
Ⅱ,Ⅳ
C.
Ⅰ,Ⅲ
D.
Ⅰ,Ⅱ,Ⅲ
【简答题】A cruel lion lived in the forest. Every day, he killed and ate a lot of animals. The other animals were afraid the lion would kill them all. The animals told the lion, “ Let’s make a deal. If you prom...
【单选题】电流触及对人体,使人体外部创伤的触电称为
A.
烧伤
B.
电伤
C.
电击
【单选题】超链接a元素的访问前、访问后、鼠标悬停及鼠标单击时的样式,可以通过伪类设置样式,其中设置访问后样式的伪类是:
A.
active
B.
hover
C.
visited
D.
link
【简答题】10 课文语法选择。 I was not feeling very well so the doctor checked my heart and said I needed more exercise.I have never been very 1 , and I do not like sports.I have always wanted a pet, 2 my parents ga...
【简答题】On Sunday while I was having my own Father’s Day celebration, I thought about my dad a lot. By the time I called to tell him that I loved him, he had already gone to bed. So I wrote the following to s...
【简答题】课文语法选择。 I was not feeling very well so the doctor checked my heart and said I needed more exercise.I have never been very 1 , and I do not like sports.I have always wanted a pet, 2 my parents gave me ...
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