石榴石中广泛的（）现象使其可分为钙系列和铝系列两大系列品种。
A.同质多象
B.类质同象
C.异常消光
参考答案：B
More has been learned about the Moon than any other of the Earth's neighbors in space because of the Apollo program, which enabled men to walk on the Moon and bring back hundreds of pounds of________.
A．rocks
B．rock
C．stone
D．stones
某疟疾患者突起畏寒，寒战，体温39℃，此时体内的变化是由于
A．散热中枢兴奋B．产热中枢抑制C．调定点上调D．皮肤血管扩张E．体温调节功能障碍
