帕金森患者CT可见（）。
A.脑坏死
B.脑萎缩
C.多发性梗塞灶
D.脑栓塞
E.脑血管淀粉样变性
参考答案：B, C
We really _____ him for his courage to say that he was wrong. [ ]
A. admired
B. excused
C. disagreed
D. hated
一只杂合的白色公羊（基因型为Aa）的20万个精原细胞产生的精子中，含有隐性基因的精子理论上应有________万个。[ ]
A．10
B．20
C．40
D．80
