简述素质测评标准化的实现途径。

如何掌握棉花密度指标？

--- The drought situation has been severe these days．

--- If it had rained even a drop, things would be much better now and many crops ____．

A．wouldn't die

B．would die

C．wouldn't have died

D．would have died

王某诉李某经济损失赔偿一案，李某在一审中败诉，不服提起上诉。二审法院认为不用开庭，意欲径行作出判决。关于此案审理的说法，你认为错误的有( )

A．只要二审法院认为适当，案件就可以径行判决

B．径行判决的话二审法院就只能在二审法院审理本案并作出判决

C．法院径行判决意味着没有采纳新的证据

D．对原审判决，二审法院径行判决只能作出改判和发回重审这两种判决

一个有三对杂合基因的个体自交5代，其后代群体中基因的纯合率为（）

A、90.91％

B、87.55%

C、93.75％

D、51.3%

当燃油供油压力低时，一个专用的燃油泵会为APU启动供油；此燃油泵正常情况下由主交流卸载汇流条供电