题目

When Americans think of the lunch menu at their childhood school cafeterias, they probably imagine a shapeless, tasteless pile of mystery meat – plus some brown much（糊状物）,to match. But for children in Japan, school lunches are a rich experience where culture, nutrition and sustainability collide.“Japan’s standpoint is that school lunches are a part of education, not a break from it,” Masahiro Oji, a government director of school health education in Japan, told The Washington Post.Fare offered at schools in Japan is affordable, fresh, and made by the students themselves. And J由大小相同的正方体木块堆成的几何体的三视图，如图所示，则该几何体中正方体木块的个数是（  ） A．8                B．7                C．6                D．5