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【单选题】
某一试验有 10 个试验因素,每个因素有 2 个水平,则此试验最多可以组成( )个水平组合(即试验处理)A.
1024
B.
20
C.
8
D.
4
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【简答题】It’s said that eyes are the windows of our soul. Beautiful and bright eyes not only show a good health but also make you look attractive. However, to have healthy eyes, you have to look after them pro...
【简答题】It is said that the eyes are the windows of our soul. Beautiful and bright eyes not only show a good health but also make you look very attractive. However, to have healthy eyes you have to look after...
【单选题】The New Year concert provided ________ with a good platform to show our talent.
A.
we
B.
us
C.
our
D.
ours
【单选题】听力原文：W: Good evening! Welcome to our Talk Show program. Our guest today is Mr. David Smith, who had the experiences of studying abroad for seven years and then returning back home. Well, Mr. Smith, do...
A.
How to go abroad for study.
B.
How to enjoy the freedom abroad.
C.
How to look for a job after returning back from abroad.
D.
Re-entry Shock and how to reduce it.
【单选题】We all know that doing morning exercises ______.
A.
is good for our healthy
B.
are good for our healthy
C.
are good for our health
D.
is good for our health
【简答题】线粒体是有氧呼吸的主要场所，叶绿体是光合作用的场所，原核细胞没有线粒体与叶绿体，因此不能进行（）。
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