感染性角膜炎病因中包括
A.衣原体、螺旋体
B.以上都对
C.棘阿米原虫、结核细菌
D.细菌、真菌
E.病毒
参考答案:B
812÷5的商是______位数,商的最高位在______位上.
There is ________wrong with my bike. I have to walk .
A.something
B.anything
C.everything
D.nothing