A. they are watchful and quiet
B. they sleep during the day
C. they dig home underground
D. they are noisy and aggressive
D
Dẫn chứng:
So most of them pass the burning hours asleep in cool, humid burrows underneath the ground, emerging to hunt only by night. The surface of the sun-baked desert averages around 150 degrees, but 18 inches down the temperature is only 60 degrees.
Its population is largely nocturnal, silent, filled with reticence, ....
Đáp án D là không đề cập đến.
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