古希腊学者阿基米德在浴缸洗澡时突然发现浮力定律,解决了“王冠之迷”。这种思维是（）
A．直觉思维
B．常规思维
C．分析思维
D．抽象思维
参考答案：A
青盲相当于现代医学之（）。
A.慢性青光眼
B.急性青光眼
C.黄斑变性
D.黄斑破孔
E.视神经萎缩
--- Do you know the boy________ is sitting next to Peter?
--- Yes. He is Peter’s friend. They are celebrating his ________ birthday.
A．who; ninth
B．that; nineth
C．/; nineth
D．which; ninth
