关于区域高效益的综合发展阶段的叙述,错误的是( )
A:第三产业的增长速度和产值比重明显地超过第二产业
B:高科技成为推动区域增长的重要力量
C:现代化的交通运输网络和信息网络逐步形成
D:区域内部的发展差异逐渐扩大
⑴When do you eat breakfast?____ A.It's warm and sunny.
⑵Can you make a snowman now?____ B.No,it isn't.
⑶What's the weather like today?____ C.I eat breakfast at 7: 15.
⑷What would you like to do?____ D.No,I can't.
⑸Is it windy and cold?____ E.I would like to go swimming.
钛(Ti)是一种广泛应用于航空、航天等领域的重要金属,工业上制钛的化学方程式为:TiCl4+2MgTi+2MgCl2,该反应属于( )