润滑油消耗定额一般按燃油消耗定额的()计算。
A.4%~5%
B.3%~4%
C.2%~3%
D.1%~2%
参考答案:C
― Did you go to the 2010 Shanghai World Expo?
― Yes, my father took me there. It was really __________!
A.a great fun
B.a fun
C.great fun
D.a great funny
患者,男性,45岁,双眼高度近视。左眼鼻下方飞蚊、闪光伴视野缺损1周就诊。检查发现左眼视网膜脱离。
该病发生的病理是()
A.玻璃体混浊,视网膜牵引
B.玻璃体混浊,视网膜裂孔
C.玻璃体液化,视网膜牵引
D.玻璃体液化,视网膜裂孔
E.玻璃体出血,视网膜牵引