乙数比40多20%,乙数是多少?
40×(1+20%),
=40×1.2,
=48;
答:乙数是48.
---______ go walking with us after supper this evening?
--- Great! I have nothing important to do.
A.What about
B.Why don’t
C.Why not
D.Let’s
燃料油从进入炉膛到烧完,大致经历()、()、()。