氨基酸吸收载体有四种,吸收赖氨酸的载体应是(),吸收脯氨酸的载体是亚氨基酸和甘氨酸载体。
参考答案:碱性氨基酸载体
过□ABCD对角线交点O作直线m,分别交直线AB于点E,交直线CD于点F,若AB=4,AE=6,则DF的长是( )。
—What do you think of Zhang Liang Ying's English songs?
—Very attractive and lively. Almost no other Super Girls can sing ______ at present, I think.
A.well
B.best
C.better
D.the best