一辆汽车每小时行驶40千米,一架飞机每小时行的路程比这辆汽车的19倍还多25千米。这架飞机每小时飞行多少千米?
40×19+25=785(千米)
Is honesty the best policy? We _ that it is when we are little. [ ]
A. will teach
B. teach
C. are taught
D. will be taught
简述历史课程资源的开发途径。