铜的熔点为多少?沸点多少?比重是多少?
参考答案:
铜的熔点为1083℃,沸点为2310℃,固态时(20℃)比重为8.94
Eugene's never willing to alter any of his opinions.It's no use ________ with him.
A.to argue
B.argued
C.arguing
D.having argued
印度最大的麻纺织中心是
A.新德里
B.乞拉朋齐
C.加尔各答
D.孟买