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i am confused about C&A. i pick C.
C. How often park rangers need to use tranquilizer darts to
immobilize rhinoceroses for reasons other than attaching radio
collars
--if the the ranges use tranquilizer often, the conclusion is weak.
-- if the rangers use it rarely, the conclusion is justified.
so it's useful to determine whether rangers use t. often.
true? |
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