如图是家蚕发育过程各阶段的形态图,其先后顺序是( )
A:①②③④
B:②①③④
C:③②①④
D:②④③①
①____②____
2015年2月10日,***在中央财经领导小组第九次会议上指出,疏解北京非首都功能、 推进京津冀协同发展, 是一个巨大的系统工程。右图是京冀各城市与北京经济联系强度指数图,指数越大,城市之间经济流量越大。从区域发展的角度看( )
英国的世界殖民霸权地位确立于
It is Earth Hour now. Many people turn off their____. Alice is not ____TV with her parents. She is ____ at the stars withthem. Kitty and her brother are not ____ storybooks. Their grandmais telling them a story. Sally usually does her homework at night. Now she is playing word games ____ her family.