下列各组字母中不含元音字母的是        

奥巴马和奥朗德是当今美国总统和法国总统。穿越时空的隧道让他们回到1875年，他们的共同点不包括(　　)

阅读题， 判断下列句子正误,。正确的写“T”,错误的写 “F”.

John: Excuse me, can I use your ruler, please?

Amy: Sure. Where is my ruler?

John: Is it in your book?

Amy: No, it isn't.

John: Is it under the desk?

Amy: No.

John: Is it on your bag?

Amy: Yes, Look! It's on my bag. Here you are!

John: Thank you.

①The ruler is John's. ____

②The ruler is in Amy's book.____

③The ruler isn't under the book.____

④John wants to use the ruler.____

⑤The ruler is on John's bag.____

若函数f（x）=sinωx （ω＞0）在区间0，$\frac{\mathrm{\pi }}{3}$上单调递增，在区间$\frac{\mathrm{\pi }}{3}$，$\frac{\mathrm{\pi }}{2}$上单调递减，则ω=____