某运动员在东西走向的公路上练习跑步,跑步情况记录如下:(向东为正,单位:米) 1000,-1200,1100,-800,1400,该运动员共跑的路程为( )。
5500米
Parents ____ much importance to education They will do their best to give their children that
priceless gift. [ ]
A. attach
B. pay
C. link
D. apply
我国食管癌防治试点一级预防的主要措施是().
A.改水去胺
B.防霉去毒
C.戒烟酒
D.施钼肥
E.治增生