当发现有人触电或电器设备着火时，正确的做法是（   ）

根据下表信息，完成表中空格：

化学符号	2K	____	Mg2+	____
符号的意义	____	2个氮分子	____	氢氧化铝

His glasses, _______ he could see nothing, was taken away by a naughty boy.

已知函数f（x）=2sin（2ωx+ $\frac{\pi }{6}$ ）+1（其中0＜ω＜1），若点（﹣ $\frac{\pi }{6}$ ，1）是函数f（x）图象的一个对称中心，

      Rose is an American schoolgirl. She is now in Beijing with her parents.
       It's Sunday morning. Rose gets up early in the morning. After breakfast her parents take her to the zoo. They go to see the pandas and other animals. The pandas live only in China. There are not any pandas in America. So they like the pandas best. Outside the zoo gate there is a picture. It's a picture of panda with “welcome”. In the zoo, Rose sees not only panda but also many other animals.
    The panda is round and fat. It looks like a ball. It always moves slowly like a ball rolling. There are also elephants. The elephant is the biggest animal on land. There are many monkeys on the hill. Some of them are sitting in the trees. Some are picking nuts. And the others are running or climbing up the trees. Rose and her parents have a good time in the zoo.