碎屑岩有以下几种基本组成部分:()、()、()和孔隙。
参考答案:颗粒、杂基、胶结物
They usually have the medicine_______ before putting into the market all over the country.
A.testing out
B.to be tested out
C.being tested out
D.tested out
胞质NADH经α-磷酸甘油穿梭后氧化磷酸化产生的ATP数是
A.1 B.2C.3 D.4