问题
选择题
-What about______party you went to yesterday evening?
-Oh, it was boring, you know, party like that!
A.the; a
B.a; the
C.the; /
D.the; the
答案
答案:A
-What about______party you went to yesterday evening?
-Oh, it was boring, you know, party like that!
A.the; a
B.a; the
C.the; /
D.the; the
答案:A
在一大群牛中间,对3个连续分布的性状加以测量,计算方差,如下表所示:
方差类型 | 性状 | ||
胫长 | 脖长 | 脂肪含量 | |
表型方差 | 310.2 | 730.4 | 106.0 |
环境方差 | 248.1 | 292.2 | 53.0 |
可加性遗传方差 | 46.5 | 73.0 | 42.4 |
显性遗传方差 | 15.6 | 365.2 | 10.6 |