—Our government has decided to ________________ more hospitals and schools in Jiangbei New District of Nanjing.
—I'm very glad to hear that.
A:look up
B:set up
C:give up
D:take up
下图是三大类岩石关系示意图,图中序号①一⑥分别代表岩浆、喷出岩、侵入岩、沉积物、沉积岩、变质岩中的某一项,图中代表沉积岩和变质岩的是( )
若x3=﹣2,则2x6=____