下列具有明显的高温期和多雨期一致的气候类型是（   ）

情景交际，选择适当的选项补全对话。

(D代表daughter,F代表father)

a.She's just a singer.,　　

b.Do you like her?,

c. Really?,

d. Who's she?,

e. I'm so excited.

D:Dad,I have good news to tell you.

F: What news?

D:A famous singer will hold a concert in Beijing on December 12th.

F:____　

D:She's a pop star from Singapore (新加坡).

F:____

D:Of course.____ She has decided this time to sing her most famous song It's Dark and Green Light.

F:I can't understand why you are so excited. ____

D:Oh,her songs are so wonderful and she's so lovely!

F:____ Your mum and I will buy you a ticket for her concert.

D: Thank you, Dad. You are too good.

如图表示某生态系统中食物网的图解，下列相关叙述正确的是（　　）

①一质点在直线上以速度v=3t²﹣2t﹣1（m/s）运动，从时刻t=0（s）到t=3（s）时质点运动的路程为15（m）；

②若x∈（0，π），则sinx＜x；

③若f′（x₀）=0，则函数y=f（x）在x=x₀取得极值；

④已知函数 $f\left(x\right)=\sqrt{-x^2+4x}$ ，则 ${\displaystyle \int {}_0^{2}f\left(x\right)dx}=\pi$ ．