A:So curious were the couple
B:So curious the couple were
C:How curious the couple were
D:The couple were such curiou
如图为一个几何体的侧视图和俯视图,若该几何体的体积为43,则它的正视图为( )
某同学牙疼,牙龈上出现了一个“脓包”,这个“脓包”主要由什么构成( )