职业道德是以政策为依据，调节人们之间和个人与社会之间关系的行为规范。( )
参考答案：错
升降浮沉表示的是
A．药物的作用部位
B．药物的毒副作用
C．药物的性质
D．药物的作用趋势
E．药物的配伍关系
They had planned to go for a picnic, but because of the rain they had to stay home_______.
A．instead
B．really
C．however
D．though
