在比例里,( ),叫做比例的基本性质。
两个外项的积等于两个内项的积
已知y与x+1成正比例,当x=5时,y=12,求y与x的函数关系式.
The disability makes everyday life difficult and________society should treat________disabled with
dignity and respect. [ ]
A. the; the
B. /; the
C. a; a
D. the; /