We definitely are not the perfect couple, () we don’t pretend to be so.
A. and
B. or
C. for
D. because
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幼年期生长素过少,会导致()
A. 呆小症
B. 侏儒症
C. 肢端肥大症
D. 尿崩症
E. 阿狄森病
成人甲状腺功能低下,会导致()
A. 呆小症
B. 侏儒症
C. 肢端肥大症
D. 尿崩症
E. 阿狄森病
What special tasks were not the first dogs bred for()
A. Hunting and protection.
B. Chasing prey.
C. Herding livestock.
D. Keeping accompany.