【名词&注释】
蕨类植物(pteridophyte)、菌丝体(mycelium)、海金沙(lygodium japonicum)
[单选题]禾柄锈菌的性孢子器是由初生菌丝体产生的。( )
A. 正确
B. 错误
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举一反三：
[单选题]玉米雌花序为佛焰苞所包藏。( )
A. 正确
B. 错误
[单选题]67 ．We can learn from the passage that businesses will .
A. have a strong desire to reduce costs
B. use the same logo in their marketing
C. gain advantages by taking early action
D. attract more shoppers by storing goods
[单选题]荚果与角果的根本区别在于( )。
A. 荚果果皮肉质可食，为肉果，角果的果皮干燥，属于干果
B. 荚果比角果粗壮或长
C. 荚果由具边缘胎座的一室子房发育来，角果由具中轴胎座的二室子房发育而来
D. 荚果由单心皮雌蕊发育而来，而角果由2心皮组成的雌蕊发育而成
[单选题]What were the people asked to do in the study?
A. To make a face at each other.
B. To get their faces impressive.
C. To classify some face pictures.
D. To observe the researchers' faces.
[多选题]下列蕨类植物中，叶具叶舌的是( )。
A. 石松
B. 卷柏
C. 水韭
D. 海金沙
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