-- Can a camel swim?

--          

开头为什么这样称呼“聪，亲爱的孩子”？

某程序框图如图所示，若该程序运行后输出的值是$\frac{9}{5}$，则                  （   ）

阅读理解
(Mr. Zhang is showing Wei Fang and Li Lei a modern factory.)
Mr. Zhang: You can’t see many workers here, but you can see a lot of robots. Look, that robot has two big hands.
Wei Fang: How strong it looks!
Mr. Zhang: Yes. It does much work for us.
Li Lei: There are so many big boxes here. What are the robots doing?
Mr. Zhang: They are making fridges.
Wei Fang: How fast they are working!
Li Lei: How much time do they need to make a fridge, Mr. Zhang?
Mr. Zhang: About five minutes.
Wei Fang and Li Lei: Only five minutes! What a modern factory it is!

要得到函数$y=\cos \left(2x+\frac{\pi }{3}\right)$的图像，只需将函数$y=\frac{1}{2}\sin 2x+\frac{\sqrt{3}}{2}\cos 2x$的图像（   ）