大桥乡今年粮食比去年增产25%,今年收粮食80万吨,比去年增产多少万吨?
80÷(1+25%)×25%,
=80÷1.25×0.25,
=16(万吨).
答:比去年增产16万吨.
—__________?
—No, I'm Alan.[ ]
A. Are you Carl
B. Are you Alan
C. What's your name
成人的服药剂量一般为每次()
A.50mL
B.100mL
C.150mL
D.200mL
E.250mL