题目
铝合金的浇铸温度是多少?A. 350-400^circmathrm(C)B. 620-730^circmathrm(C)C. 1260-1400^circmathrm(C)
铝合金的浇铸温度是多少?
A. $350-400^{\circ}\mathrm{C}$
B. $620-730^{\circ}\mathrm{C}$
C. $1260-1400^{\circ}\mathrm{C}$
题目解答
答案
B. $620-730^{\circ}\mathrm{C}$
A. $350-400^{\circ}\mathrm{C}$
B. $620-730^{\circ}\mathrm{C}$
C. $1260-1400^{\circ}\mathrm{C}$