当a=1,b=3,c=5,d=4时,执行完下面一段程序后x的值是_____if(a<b) if(c<

当a=1,b=3,c=5,d=4时,执行完下面一段程序后x的值是_____if(aif(celse if(a if(b else x=3; else x

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下列不为棕椰形树冠的树木为(     );

下列不为棕椰形树冠的树木为(     );A (A)蒲葵B (B)苏铁C (C)鱼尾葵D (D)天竺桂

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the hero was distinguished by his accomplishment;

the hero was distinguished by his accomplishment; the celebrity by his appearanc

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与被子植物相比较,裸子植物胚珠(    )

与被子植物相比较,裸子植物胚珠(    )A (A)有子房包被B (B)无子房包被C (C)有花被片D (D)有雄蕊

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