角膜基质层占角膜厚度的()%。
参考答案:90
---How bright the sun is!
---You’d better wear your dark glasses to_____ your eyes from it.
A.protect
B.prevent
C.keep
D.stop
处理急性口服中毒昏迷患者不宜采取:()
A.催吐
B.洗胃
C.导泻
D.利尿
E.药物解毒