病变主要涉及下睑结膜的是
A.过敏性结膜炎
B.春季结膜炎
C.有毒性 * * 性结膜炎
D.包涵体性结膜炎
E.沙眼
参考答案:C
Tomorrow there’s a programmed about our school on TV,then it ____ by millions of people.
A.will see
B.saw
C.will be seen
D.was seen
半桥式功率转换电路抗不平衡能力强。()