与钢相比，铸铁工艺性能的突出特点是（）。
A.可焊性好
B.淬透性好
C.可铸性好
D.可锻性好
参考答案：C
---How often do you turn to the dictionary when you are reading an English novel?
---Well, ___. I will look the word up if it affects my understanding.
A．seldom
B．very often
C．it depends
D．if possible
成交方式（）。
A．CFR
B．FOB
C．CIF
D．FCA
