at wa
举一反三
- 3种基因型的适合度分别为：wA/A=0.9，wA/a=1.0，wa/a=0.7。
- at wa
- at wa
- ___________ divides the 19th century into the age of romanticism and realism in American literature. A: The Spanish-American wa B: The Civil Wa C: American Revolutionary Wa D: WWI
- 图示等截面直梁，下列说法中正确的是 。[img=230x99]180305c5c5df0c2.png[/img] A: wA=0 , θA≠0 B: wA=0 ,θA=0 C: wA≠0 ,θA=0 D: wA≠0 ,θA≠0