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【单选题】
在电子显微镜下原核生物的转录现象呈现羽毛状图形,这说明A.
在同一个模板链上,有多个转录同时在进行
B.
转录产物与模板形成很短的杂化双链
C.
越靠近模板的5′端转录产物越短
D.
越靠近模板的3′端转录产物越长
E.
转录未终止,翻译不能进行
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举一反三
【单选题】According to the writer, new knowledge may come from
A.
relating new ideas to old ones
B.
advanced learners' ideas
C.
what we have already known
D.
sense out of experiences
【简答题】A．Theoretical rather than applied knowledge is emphasized. B．Teachers come from all over the world. C．Each course does not last long. D．New ideas are seldom adopted in their teaching.
【单选题】When ____ to repairing a computer, I have little knowledge of it. [ ]
A.
I come
B.
it comes
C.
we come
D.
they come
【单选题】(come to) have knowledge of something through the mind
A.
conceive
B.
perceive
C.
receive
【单选题】All of us have come to understand that knowledge ____only from practice.
A.
has come
B.
came
C.
comes
D.
is coming
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