一级动力学转运特点描述中错误的为
A.消除速率与血药浓度成正比
B.血药浓度与时间作图为一直线
C.半衰期恒定
D.被动转运属于一级动力学
E.t1/2=0.693/k
参考答案:B
- Have you finished the maths problem?
- Not yet, because I find it difficult ______.[ ]
A. in working out
B. working out
C. to work it out
D. to work out
如图所示,用手指突然弹击硬纸片,鸡蛋______随纸片飞出去,这是由于______的缘故.