If metal is heated and then cooled very quickly, , by dipping in cold water, it will be very hard but will break easily.
A. what’s more
B. in general
C. for example
D. on the other hand
网友回答
A. what’s more
(答案→)B. in general
C. for example
D. on the other hand
解析：考查短语辨析。what’s more此外，in general大体地，for example例如，on the other hand 另一方面，根据语境应选B。