单项选择题

Many nonferrous metals, such as aluminum and other non-ferrous metals exhibit no fatigue limit.

A.正确
B.错误
<上一题 目录 下一题>
热门 试题

单项选择题
Material with high bonding energy has low thermal expansion coefficient.
A.正确
B.错误
单项选择题
当逻辑函数有n个变量时，共有（ ）个变量取值组合。A. nB. 2nC. n2D. 2n
相关试题