(1)16:49,
=16÷49,
=38;
(2)0.2:0.08,
=0.2÷0.08,
=2.5;
故答案为:38,2.5.
遗传漂变
根据《四总穴歌》,其治应取:
A.足三里B.委中C.列缺D.合谷E.三阴交