【单选题】药品生产、经营企业和医疗卫生机构发现新的或严重的药品不良反应报告的时间为
【单选题】组网容易、管理方便、成本低、使用灵活、( )。
【单选题】将挥发油制成注射剂,常加入适量氯化钠其主要作用是
【简答题】选择适当的方法表示下列集合:(1)绝对值不大于3的整数组成的集合;(2)方程(3x-5)(x+2)=0的实数解组成的集合;(3)一次函数y=x+6图像上所有点组成的集合.
【单选题】If tires and gasoline are compliments, then .
A.
an increase in the price of gasoline will reduce the consumption of tires
B.
an increase in the price of gasoline will increase the consumption of tires
C.
tires and gasoline consumption are unrelated
D.
an increase in the price of tires will increase the consumption of gasoline
【判断题】产品毛利率是菜点毛利额与成本或销售价格的比率。
【单选题】2 下列集合只能用描述法表示的是 ()
A.
大于 -5 且小于 3 的所有实数组成的集合
【单选题】Gasoline is considered a final good if it is sold by a
A.
gasoline station to a bus company that operates a bus route between San Francisco and Los Angeles.
B.
pipeline operator to a gasoline station in San Francisco
C.
gasoline station to a motorist in Los Angeles.
D.
All the answers are correct.