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【单选题】
如 图中的实线表示某岛屿上鹿的种群数量随时间的变化情况。下列有关分析错误的是A.
该环境中鹿群的 K 值始终恒定不变
B.
c 点时鹿群的出生率约等于死亡率
C.
a 点时的增长率小于 d 点时的增长率
D.
cd 段时间内可能有较多的捕食者
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举一反三
【单选题】In what part of the eye are the rods and cones located?
A.
Cornea.
B.
Lens.
C.
Retina.
D.
Optic nerve.
【单选题】Which mode of interpreting is more widely used in real life?
A.
simultaneous interpreting
B.
consecutive interpreting
【单选题】The author compares the pinhole to a lens in order to show ______ .
A.
the development of the lens
B.
that both operation on the same principle
C.
how the early camera operated
D.
how primitive scientific thinking was, prior to the 16th century
【简答题】味精使用的最佳环境为( )。
【单选题】________ which one doesn't belong to classification of interpreting by forms?
A.
consecutive interpreting
B.
simultaneous interpreting
C.
sight interpreting
D.
escort interpreting
【单选题】What do the thousands of light beams measure?
A.
The focusing accuracy of the lens of the eye.
B.
Eye color and vision.
C.
Where the beams travel.
D.
The reflection of the retina.
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