皮皮学，免费搜题
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【多选题】
人类( )号染色体中含有核仁组织者。A.
是有丝分裂器的主要成分
B.
与染色单体精确分配有关
C.
属临时性细胞器
D.
纺锤丝由排列的微管组成
E.
参与细胞的胞质分裂
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The passage supplies information for answering which of the following questions?
A.
Where was the mechanism made?
B.
What was the primary purpose of the Antikythera mechanism?
C.
How did ancient scientists know how to use the Antikythera mechanism?
D.
Precisely how many gears did the mechanism have?
E.
What is the purpose of computer tomography?
【单选题】You’d better make a mark ______ you have any questions.
A.
at which
B.
at where
C.
the place
D.
where
【单选题】When you read books, you had better make marks ______ you have questions.
A.
where
B.
in where
C.
at which
D.
which
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