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【简答题】
下图所示，甲图表示A、B两种植物叶肉细胞的光合速率和光照强度的关系，是A植物叶肉细胞内有关结构模式图。据图回答下列问题： (1)甲图中，当在_______千勒克斯光照强度条件下，A、B两种植物的光合速率相同。B植物在1天内(12h白天，12h黑夜)，要使有机物积累为正值，白天平均光照强度必须大于___________千勒克斯。 (2)在光照强度为12千勒克，A、B两种植物的光合速率不同，主要原因是叶肉细胞的叶绿体中_____不同。 (3)对于A植物，当光照强度为10千勒克，对应中存在的箭头有(填字母)_______。 (4)中c不能表示葡萄糖的去向，原因是______。
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【单选题】She ________down in bed and soon fell asleep.
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lied
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【简答题】I. Check Your Vocabulary Find a word or phrase from the bracket to complete each sentence and change the form if necessary. Feeling extremely exhausted after a day’s work, she ____ into the sofa and s...
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【单选题】Jack’s mother was so tired. She fell asleep_________ she lay down on the bed.
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until
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as soon as
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unless
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although
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【单选题】Please fill in the blanks with given words. 1.Feeling extremely exhausted after a day’s work,she _____ into the sofa and soon fell asleep.
A.
introductory
B.
bark
C.
cumulative
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sneaky
E.
surrender
F.
stream
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slumped
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相关题目：
【单选题】She soon fell asleep,__________(因为) she was too tired.
A.
for
B.
but
C.
and
查看完整题目与答案
【判断题】She soon fell asleep,for she was too tired. 下面的回答是否正确: What did you do yesterday ?
A.
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B.
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【多选题】在某些特殊情况下,对年龄需要进行估计,下列哪些内容可作为判断年龄的依据
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【简答题】在萃取操作的B.-S部分互溶物系中加入溶质A组分，将使B.-S互溶度（）。
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【单选题】Lucy fell asleep_______ she was listening to music.
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C.
after
D.
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查看完整题目与答案
【单选题】Please fill in the blanks with given words. 1.Feeling extremely exhausted after a day’s work,she _____ into the sofa and soon fell asleep.
A.
introductory
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bark
C.
cumulative
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sneaky
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surrender
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stream
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查看完整题目与答案
【简答题】开吹枪位的确定依据?
查看完整题目与答案