单选题"Cast iron has poor corrosion resistance to sea water, especially in the presence of bronzes" Implies（）.Aeast iron is a cheap materialBcast iron can pollute sea waterCcast iron has mere corrosive than bronzes to sea waterDcast iron is more corrosive to sea water when it meets with bronzes
单选题
"Cast iron has poor corrosion resistance to sea water, especially in the presence of bronzes" Implies（）.
A
east iron is a cheap material
B
cast iron can pollute sea water
C
cast iron has mere corrosive than bronzes to sea water
D
cast iron is more corrosive to sea water when it meets with bronzes
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