药物选用原则为()、()、()和()。
参考答案:有效性、安全性、方便性、廉价性。
The young man was put into prison as he was _______ of robbing the bank.
A.accused
B.scolded
C.reminded
D.charged
比吸收率是指生物体每单位质量所吸收的电磁辐射功率,即吸收剂量率。