已知函数y=Asin（ωx+φ）+b的一部分图象如图所示（A＞0，ω＞0，|φ|＜ π2 ），则函数表达式为

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已知函数y=Asin（ωx+φ）+b的一部分图象如图所示（A＞0，ω＞0，|φ|＜ π

），则函数表达式为（）

A：y=2sin（ $\frac{1}{2}$ x+ $\frac{5 π}{12}$ ）+2

B：y=2sin（2x+ $\frac{π}{6}$ ）+2

C：y=4sin（2x+ $\frac{5 π}{12}$ ）+2

D：y=4sin（2x+ $\frac{π}{6}$ ）+2

上一题下一题 0.0难度选择题更新时间:2020-02-13 08:45:41

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I'm Simon from America. I am twelve and I'm at Wllize junior School(初中). This month We have two school events(事件). One is an English party and one is a school trip. Next month, there will be five events.

Here is a list.

Date	Event
May12	School Day
May15-17	English speech Contest 3:00pm--4:30pm
May18	Volleyball game 2:00--3:30pm
May19	Art Festival 19:00am--5:00pm
May24	Music party 6:00--9:00pm

I'm in the school volleyball club. 1 also like singing. 1 want to play in the volleyball game and sing at the music party. 1'm very happy.

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