摧毁了长期盛行的唯心神造论和物种不变论的是( )
A:牛顿万有引力定律
B:牛顿运动三大定律
C:爱因斯坦的相对论
D:达尔文的进化论
非包装食品不需要称重量。 ( )
已知f(x)=2sin(2x+π3)+1
(1)在直角坐标系中用“五点画图法”画出f(x)一个周期的图象(要求列表、描点)
(2)直接写出函数f(x)的单调递增区间以及f(x)取最大值时的所有x值的集合.
Travelling to London
We think ⑴ is the best season to visit England.
We did most of our sightseeing(观光) ⑵ .
The best part of the trip was going to the theatre.
We don't think the English food is very ⑶ .