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【單選題】
在對某農的田鼠的種群密度調查時，第一次捕獲并作標記20只，一個月后捕獲田鼠20只，其中有標記的田鼠8只，則該農田鼠的數量約為（ ）
A.
50只
B.
400只
C.
160只
D.
28只
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舉報參考答案：
舉一反三
【單選題】From the window, you can get a better ______ of the beautiful green countryside.
A.
scene
B.
scenery
C.
view
D.
sight
【單選題】They ________ the prisoners to exercise two hours a day.
A.
permit
B.
suggest
C.
let
D.
make
【單選題】Sorry! With much homework ________, I can’t play outside.
A.
finished
B.
to finish
C.
finishing
D.
to be finished
相關題目：
【單選題】From the window, you can get a better ______ of the beautiful green countryside.
A.
scene
B.
scenery
C.
view
D.
sight
【單選題】They ________ the prisoners to exercise two hours a day.
A.
permit
B.
suggest
C.
let
D.
make
【單選題】Sorry! With much homework ________, I can’t play outside.
A.
finished
B.
to finish
C.
finishing
D.
to be finished
參考解析：
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