题目

Bacteria are an annoying problem for astronauts. The microorganisms（微生物） from our bodies grow uncontrollably on surfaces of the International Space Station, so astronauts spend hours cleaning them up each week. How is NASA overcoming this very tiny big problem? It’s turning to a bunch of high school kids. But not just any kids. It depending on NASA HUNCH high school class, like the one science teachers Gene Gordon and Donna Himmelberg lead at Fairport High School in Fairport, New York. HUNCH is designed to connect high school classrooms with NASA engineers. For the past tw生物分类从高到低排列，排序正确的是（ ）A.界、门、纲、目、科、属、种B.界、门、目、纲、属、科、种C.门、界、纲、目、属、种、科D.种、属、科、目、纲、门、界