早期出现明显视力障碍的是
A．核性白内障
B．后囊膜下白内障
C．晶状体溶解性青光眼
D．皮质性白内障的初发期
E．皮质性白内障的膨胀期
参考答案：B
根据括号内所给词的适当形式填空
1. It is very (importance) for us to work hard for a better life.
2. We have a (please) journey during the l0-day holiday.
3. The villagers got good (medicine) care in the countryside.
4. Now I can go to work instead of (go) by car.
5. Jack is very happy, because he got an "A" in the (finally) exam.
转杯纱的成纱特点。
