选择题：Today a student knows that__________

题目内容：

Today a student knows that__________

A．his knowledge is often incorrect

B．he cannot learn more than the students in the 19th century did

C．those who come after him will have greater difficulties in learning

D．his knowledge is very limited compared with the total amount

参考答案：

下列有关种群容量的说法错误的是( )

下列有关种群容量的说法错误的是( )A.种群容量指的是一个有限的环境中所能稳定达到的最大数量B.温、光、水、养分等因子或食物、空间等资源所构成的环境决定了种群容量C.种群数量低于环境容量时，种群数量趋向

分类：习题答案题型：选择题

甲、乙群落各有100个个体，其中甲中90个属于种A，10个属于种B，而乙中种A、种B各占一半，甲、乙群落均匀度的比较结果为( )A.甲高B.乙高C.一样D.无法比较

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__________you suspect something, I may as well tell you the whole truth.A． SinceB． UntilC． AfterD． Wh

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作者对车夫姚纳倾注了怎样的感情？

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The exciting work was good for me as it got my blood__________ agreeably through my veins.A． circulat

分类：习题答案题型：选择题