A:用物质A表示的反应速率为0.6mol/(L·s)
B:用物质B表示的反应速率为0.3mol/(L·s)
C:2s时物质B的浓度为0.3mol/L
D:2s时物质A的转化率为30%
生物多样性不包括( )
①体现了生产决定消费方式、为消费创造动力的理论
②有利于学生理性消费,树立绿色消费的理念
③佐证了消费所形成的新的需要,对生产起着导向作用的理论
④有利于学生从求异心理引发的消费转向从众心理引发的消费
冷嘲热讽____(fěng fēng) 不屑一顾____(xiè xiāo) 哭啼____(dí tí)
模样____(mú mó) 兑现____(duì tuì)
Dear Jenny,
Now we are in the hospital of our city . My mother and I have a bad cold . We sees many children here . Some people have a cold. Some people have a headache. Some people have a fever. They a re waiting outside the doctor's room .Now it's our turn.
Yours,
Jack