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【单选题】
B级分隔是指由符合_____要求的舱壁、甲板、天花板或衬板所组成的分隔。1、其构造能在最初半小时的标准耐火试验结束时,防止火焰通过;2、具有符合规定的隔热值; 3、以认可的不燃材料制成A.
①、②、③
B.
①、②
C.
①、③
D.
②、③
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【判断题】( )71. Idioms are set phrases whose meaning is often difficult or impossible to infer from the constituent words.
A.
正确
B.
错误
【简答题】在三点测验中,已知AbC和aBc为两种亲本型配子,在ABc和abC为两种双交换型配子,这三个基因在染色体上的排列顺序是_____。
【简答题】在三点测验中,已知AbC和aBc为两种亲本型配子,在ABc和abC为两种双交换 型配子,这三个基因在染色体上的排列顺序是____________。
【单选题】According to the idiomaticity of idioms, idioms include ________.
A.
true idioms
B.
semi-idioms
C.
regular combinations
D.
all the above
【单选题】In an uncertain world, many children rely on their parents’ support much longer than they used to.
A.
Transitional Words
B.
Comparative Structure
【简答题】It is reported that more than three-fifths of Chinese school children rely on extra tuition( 补习 ) to improve their grades. It is also widespread in other Asian countries. These countries have one thin...
【简答题】The gap between childhood and college has shrunk, and so has the gap between college and the real world. One of the reasons may be financial. In an uncertain world, many children rely on their parents...
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