已知函数y=(2m﹣3)x+(3n+1)的图象经过第一,二,三象限,则m与n的取值范围分别是( )
m>,n>﹣
卸货货前大副的准备职责是()。
Ⅰ检查货物湿损情况;
Ⅱ.与工头协商开工舱口数和顺序;
Ⅲ.与工头协商卸货速度;
Ⅳ.向值班驾驶员说明卸货应注意的事项。
A.Ⅰ~Ⅳ
B.Ⅰ~Ⅲ
C.Ⅱ~Ⅳ
D.Ⅰ、Ⅲ
()He teaches physics in a school.
A.What does your father want to do?
B.Who is your father?
C.What is your father?
D.Where is your father now?