Lily’s mobile phone was left in a taxi accidentally, _____ again.

A．never to find

B．to never be found

C．to never find

D．never to be found

低熔点铅挡块的组成成分是()

A、铅、铋、铜、锡 

B、铅、铋、镉、锡 

C、铅、铁、铜、铋 

D、铅、铝、钨、铋 

E、铅、铝、铋、铜