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【简答题】
机器数系F(2,3,-1,2)中有 个数。
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【单选题】Those welfare families moved to Charlotte's neighborhood, which makes situation even worse.
A.
Y
B.
N
C.
NG
【简答题】even worse
【简答题】even worse
【单选题】Paragraph 6 Question What made the situation even worse for the author?
A.
The situation was made even worse as the author was barred from the gym team and the monthly ballroom dancing class which she loved so much.
B.
The situation was made even worse as the author was barred from the gym team and the weekly ballroom dancing class which she loved so much.
【简答题】[性状鉴别] 1略呈半球形或不规则团状。2残留花梗上被细柔毛,花托半球形,与花萼基部合生;萼片5,披针形,黄绿色至棕绿色,被有细柔毛;花瓣多皱缩,展平后呈广卵圆形,呈覆瓦状排列,紫红色,少数黄棕色;雄蕊多数,黄褐色;花柱多数,柱头在花托[ 集成头状,略突出,短于雄蕊。3体轻,质脆。4香气浓郁,味微苦、涩。 [功能主治]行气解郁,和血,止痛。
【简答题】观察南瓜雌雄花。回答下列问题： A．写出花程式。 B．如何判断三体雄蕊中，哪一个由1枚雄蕊组成，哪两个分别由两枚雄蕊组成? C．三体雄蕊是由5枚离生雄蕊两两愈合而成的。请问这一进化过程发生在两性花阶段，还是已演化出雄花后? D．南瓜雄花多于雌花，花药、柱头显著，腺花盘发达，这些性状与胚珠多数之间有什么关系?
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