【名词&注释】
筒状花(discoid flower)、舌状花(ligulate flower)
[单选题]植物细胞都具有次生壁。( )
A. 正确
B. 错误
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举一反三：
[单选题]
A. aim
B. joke
C. nod
D. stare
[单选题]下列真菌中，有性生殖为接合生殖的是( )。
A. 根霉
B. 蘑菇
C. 禾柄锈菌
D. 银耳
[单选题]Mozart’s birthplace and the house ______ he composed “The Magic Flute” are both museums now.
A. where
B. when
C. there
D. which
[单选题]—Honey,let’s go out four dinner.— ________I don’t have to cook.
A. Forget it!
B. That’s great!
C. Why?
D. Go ahead.
[单选题]菊科筒状花亚科的缘花为舌状花，盘花为筒状花。( )
A. 正确
B. 错误
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