滤袋的特性主要指标有:()、密度、抗折性能(脆性)、断裂强度和断裂伸长、()、热收缩率、水解稳定性、抗酸性、氧化稳定性。
参考答案:透气性、耐温性
已知m<0,-l<n<0,则m,mn,mn2由小到大排列的顺序是( )
A.m,mn,mn2
B.mn,mn2,m
C.mn2,mn,m
D.m,mn2,mn
I have been convinced that the print media are usually more __ and more reliable than television.
A.accurate
B.ridiculous
C.urgent
D.shallow