【名词&注释】
蛋白质(protein)、天南星科(araceae)、助细胞(synergid)、花粉管萌发(pollen germinating)
[单选题]糊粉粒贮藏的养分是( )。
A. 淀粉
B. 脂肪
C. 蛋白质
D. 核酸
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举一反三：
[单选题]薯蓣科植物的叶脉为( )。
A. 平行叶脉
B. 叉状叶脉
C. 羽状网脉
D. 基出掌状脉并有网脉
[单选题]花粉管萌发(pollen germinating)发生在( )。
A. 花粉散发之前
B. 花粉散发时
C. 花粉落到柱头上后
D. 受到助细胞分泌的物质诱导时
[单选题]Frank put the mediocre in the top drawer to make sure it would not be_______ to the kids.
A. accessible
B. ralative
C. accepteble
D. sensitive
[单选题]She had just finished her homework her mother asked her to practice playing the piano yesterday.
A. when
B. while
C. after
D. since
[单选题]I'm calling to enquire about the position __in yesterday's China Daily.
A. advertised
B. to be advertised
C. advertising
D. having advertised
[单选题]天南星科的巨魔芋的佛焰苞高可达2m，是世界上最大的花之一。( )
A. 正确
B. 错误
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