屈光系统
参考答案：
房水,玻璃体,晶状体,和角膜一样,B’均无血管透明,具有屈光作用.A’
24个3.05是多少？
Shanghai lies _____ the west of the Pacific Ocean, where you can’t find many islands ____ the coast.
A．on, off
B．to, along
C．in, off
D．on, along
