单项选择题

台湾相思成熟植株的枝上绿色扁平结构为( )。

A.叶片
B.托叶
C.叶柄
D.苞片
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热门 试题

单项选择题
According to the passage, what is the immediate problem caused by the consumption of manufactured products?()

A.Exhaustion of natural resources.
B.Waste disposal.
C.Pollution from industry.
D.Money-oriented mentality.

多项选择题
关于小儿多种药物蛋白结合率比成人低,原因是()

A.血浆蛋白水平比成人低
B.蛋白与药物结合能力差
C.血pH偏低影响药物与蛋白质的结合
D.胆红素竞争结合

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