题目

下列哪一组中，人的含氧多的血在静脉血管里流动，循环的类型及血管名称是  ①体循环  ②肺循环  ③肺静脉  ④肺动脉     A．①③    B．②③    C．①④    D．②④ 答案：B She doesn’t speak ________ her friends, but her written work is excellent． [　　] A． as well as B． as often as C． as much as D． as good as