黄色圆粒和绿色圆粒豌豆杂交,其子代表现型的统计结如右图所示,杂交后代中新表现型个体所占的比例为()
A.1/3
B.1/4
C.1/9
D.1/16
参考答案:B
The news made all of us .[ ]
A. surprising
B. surprised
C. to surprising
D. to surprise
代表挥发油中游离羧酸和酚类成分含量的指标是( )
A.酸值B.酯值C.pH值D.皂化值E.折光率