A:what
B:which
C:whether
D:that
80÷4=____
400×5=____
4.5+3.2=____
3.1-0.4=____
269÷7≈____
73×22≈____
我国经典医著《黄帝内经》中记载:喜伤心,怒伤肝,忧伤肺,恐伤肾。这说明( )
If you want a____(永久的)job,you will have to be devoted to improving your skills.