题目内容
黄化幼苗的光敏色素含量比绿色幼苗____,光敏色素是一种易溶于水的____。
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光敏色素有两种类型: ____和____,其中____型是生理激活型,____型是生理失活____型。
【单选题】The general considered all the information that had been gathered and _________ what possible moves the enemy might make before issuing his orders.
【单选题】The new president said she would _________ herself to protecting the rights of the old and the homeless, who are otherwise helpless and vulnerable.
【单选题】Cell phone conversations, which are fairly _________on commuter trains, can be annoying to fellow commuters.
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