What is the animal ______baby is sleeping in its pocket?
A. who
B. whose
C. its
D. which
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葡萄酒、葡萄汁里容易产生黄曲霉导致的黄曲霉毒素。()
A. 对
B. 错
Tom is ____ taller than his elder brother.
A. more
B. much
C. very
D. by far
按照对后继神经元的影响来分类,可分为()类。
A. 2
B. 3
C. 4
D. 1
CRH5型动车组客室共设置()车窗。
A. 一种
B. 二种
C. 三种