金属单质家族四兄弟W、X、Y、Z，不小心掉入稀盐酸池，神情如图所示：

则W、X、Y、Z的金属活动性顺序为(  )

A．X＞W＞Z＞Y

B．Z＞X＞W＞Y

C．W＞X＞Y＞Z

D．Y＞Z＞X＞W

In life, you will _________ many unexpected things. If not so, what is the meaning of life?

A．come about

B．come across

C．come into

D．come from