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【单选题】
FeCl3反应的条件是A.
芳环
B.
内酯环
C.
蒽环
D.
酚羟基
E.
活泼氢
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举一反三
【简答题】军事思想具有鲜明的_________,强烈的时代性和明显的_________。
【简答题】D Wilma was born on June 23, 1940 in St Bethlehem, Tennesse. By the time she was 6, Wilma Rudolph was given metal braces (支架) to aid her in walking. She started receiving treatment with help from her ...
【单选题】关于色阶的说法下列错误的是
A.
色阶是表示图像亮度强弱的指数标准
B.
色阶指亮度，和颜色无关
C.
色阶图只是一个直方图，用横坐标标注质量特性值，纵坐标标注频数或频率值，各组的频数或频率的大小用直方柱的高度表示
D.
色阶可以调节图像的颜色
【简答题】阅读理解 Wilma was born on June 23,1940 in St Bethlehem, Tennesse.By the time she was 6, Wilma Rudolph was given metal braces (支架) to aid her in walking.She started receiving treatment with help from her ...
【单选题】Wilma was __________ to have Temple as her coach, since he saw in her an indomitable spirit.
A.
perfect
B.
fortunate
C.
sad
D.
angry
【简答题】Wilma was to have Temple as her coach, since he saw in her an indomitable spirit.
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