世界上最早记载应用水银(水银膏)治疗外伤感染的是
A.《黄帝内经》B.《五十二病方》C.《阴阳脉死候》D.《周礼·天官》E.《肘后救卒方》
参考答案:B
矿物表面润湿接触角与矿物的可浮性关系,接触角小,则矿物的(),难浮。
A、亲水性弱
B、疏水性强
C、亲水性强
D、疏水性弱
If Newton lived today, he would be surprise by what () in science and technology.
A. had discovered
B. had been discovered
C. has discovered
D. has been discovered