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【单选题】
下列关于种群和群落的叙述 ,错误的是( )A.
一片草地上的所有灰喜鹊是一个灰喜鹊种群
B.
可以用标志重捕法调查老房屋中壁虎的种群密度
C.
演替达到相对稳定的阶段后 ,群落内物种组成不再变化
D.
洪泽湖近岸区和湖心区不完全相同的生物分布,构成群落的水平结构
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举一反三
【单选题】After our government launched a _____ to popularize Chinese language worldwide, lots of Confucius colleges have appeared in foreign universities. [ ]
A.
campaign
B.
movement
C.
measure
D.
struggle
【简答题】从5个数字1,2,3,4,5中等可能地,有放回地连续抽取3个数字,则3个数字中不含1和5的概率为( )。
【单选题】. The ancient Chinese vases _______ display attracted lots of experts and collectors, some of whom suggested they______ on the next fair.
A.
on; displayed
B.
on; be displayed
C.
in; displayed
D.
in; be displayed
【简答题】把十进制数41,转换成二进制为____________,转换成八进制为_______________,转换成十六进制为_______________。
【单选题】After our government launched a (n) to popularize Chinese language worldwide, lots of Confucius colleges have appeared in foreign universities.
A.
campaign
B.
arrangement
C.
measure
D.
struggle
【单选题】Luo Jing,_____ broadcasting style lots of Chinese appreciate, died as a result of cancer.
A.
whom
B.
of whom
C.
whose
D.
his
【单选题】Eric wants to know _________about Chinese culture.
A.
many
B.
a lot of C a lot D lots of
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