A.21頭 B.23頭 C.25頭 D.27頭
A.80% B.88% C.92% D.97%
A.80% B.88% C.95% D.97%
A.85% B.88% C.92% D.97%
A.85% B.88% C.94% D.98%
A.后備1.3-1.6公斤,經(jīng)產(chǎn)1.4-1.7公斤 B.后備1-1.3公斤,經(jīng)產(chǎn)1.3-1.5公斤 C.后備1.6-1.8公斤,經(jīng)產(chǎn)1.8-2.0公斤 D.后備1.8公斤以上,經(jīng)產(chǎn)2公斤以上
A.10% B.20% C.30% D.40%
A.1胎21%,2胎18%,3胎16%,4胎15%,5胎13%,6胎10%,7胎7% B.1胎17%,2胎16%,3胎15%,4胎14%,5胎14%,6胎13%,7胎11% C.1胎21%,2胎20%,3胎19%,4胎14%,5胎11%,6胎8%,7胎7%
A.33% B.45% C.55% D.65%
A.85% B.90% C.97% D.99%
A.1.5:1 B.1.2:1 C.2.5:1 D.2.8:1
A.0.2-0.3平方米 B.0.35-0.4平方米 C.0.4-0.6平方米 D.0.6-0.8平方米
A.85% B.90% C.95% D.98%
A.2:1 B.2.5:1 C.2.8:1 D.3.5:1
A.0.6-0.8平方米 B.0.8-1平方米 C.1.2-1.5平方米 D.1.5-2平方米