某校每周五中午的“晨风广播”,让同学们讲讲自己所关心的问题,评述社会热点和焦点问题。这项举措有助于同学们( )①了解社会,了解世界 ②拓宽视野,增长知识③增强关心社会、热爱祖国的情感 ④提高观察问题、明辨是非的能力
A:①③④
B:①②④
C:②③④
D:①②③④
选出能接在下列各题后面的选项
A. the swimming club
B after dinner
C. to get to the shop
D. but I can say it
E. from Chinese history
l. You can take the number 17 bus____.
2. I usually do my homework ____ .
3. I can't write it ____.
4. You can learn a lot ____ .
5. I want to join____.
贵州省山区人民为摆脱贫困,采取的措施,不正确的是( )
如图,在平行四边形ABCD中,AD=5,AB=3,AE平分∠BAD交BC边于点E,则线段BE,EC的长度分别为( )