皮皮学，免费搜题
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【单选题】
产生花粉植株的两种途径中，得到胚状体和愈伤组织都是通过哪个过程进行的 [ ]A.
分化
B.
脱分化
C.
再分化
D.
诱导
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【简答题】凭谁问, , 尚能饭否 ?
【简答题】28256 型 EPROM 容量为 32K × 8 位, 则访问该芯片需要( )位地址,假定该芯片在存储器中的起始地址为全0,则其末地址为( )
【多选题】以下哪些是钢材的流通加工形式?( )。
A.
钢板的切割
B.
使用矫直机将薄板卷材展平、纵向切割薄板卷，使之成为窄幅(钢管用卷材 )
C.
汽割厚板
D.
切断成形钢材
【单选题】We tend to think of humans as the only creatures with organized societies in which each individual has or may have a particular role. However, there are other creatures, for example, insects such as a...
A.
each ant has many roles
B.
they exist in every part of the planet
C.
they are very successful
D.
they have societies which are organized
【单选题】听力原文： When you see a clever advertisement in a newspaper, do you say to yourself, 'Ah, that's good. I'd like to have one of those'? Or do you say, 'What lies are they telling this time? It can't be ve...
A.
Trust all advertisements and make purchases accordingly.
B.
Get suitable colors and prices from advertisements.
C.
Doubt the truthfulness of advertisements.
D.
Admire the clever ways advertisements are made.
【单选题】In the last 500 years, nothing about people, their clothes, ideas, or languages has changed as much as what they eat. The original chocolate drink was made from the seeds of cocoa tree by South Americ...
A.
Food
B.
Chocolate drinks
C.
Potato
D.
Coffee
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