【名词&注释】
生殖细胞(germ cell)、单倍体(haploid)、美人蕉(canna)、基本单位(basic unit)、生物体(organism)
[单选题]姜科和美人蕉科的花最美丽的部分是由雄蕊变态而来的。( )
A. 正确
B. 错误
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举一反三：
[单选题]what was mrs.franks ding doing when the accident took place?
A. walking along churchill avence .
B. getting ready to cross the road .
C. standing outside a bank
[单选题]菠萝果实顶端的叶丛称( )。
A. 吸芽
B. 花芽
C. 果芽
D. 冠芽
[单选题]What do we know about the indian IT industry?
A. It will move its head office to shenzhen
B. It is seeking further decelopment in China
C. It has attracted an investment of US$15 billiom
D. It caught up with the US IT industry in2008.
[单选题]心皮是构成雌蕊的基本单位，是适应生殖的变态叶。( )
A. 正确
B. 错误
[单选题]A wheelchair user may need help to enter ．
A. the House
B. the garden
C. the Visitors’Centne
D. the exhibition hall
[单选题]豌豆的卷须是小叶变态，属叶卷须。( )
A. 正确
B. 错误
[单选题]由含有三个染色体组的生殖细胞直接发育的生物体(organism)为（ ）
A. 六倍体
B. 三倍体
C. 二倍体
D. 单倍体
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