
【名词&注释】
减数分裂(meiosis)、苔藓植物(bryophytes)、生活史(life history)、配子体(gametophyte)、大丈夫(true man)、成膜体(phragmoplast)、细胞有丝分裂(cell mitosis)、卵细胞(egg cell)
[单选题]苔藓植物的生活史中,减数分裂发生在( )。
A. 合子分裂产生胚时
B. 产生精子、卵细胞(egg cell)时
C. 产生孢子时
D. 原丝体发育成配子体时
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举一反三:
[单选题]以下句子中,全部表明朱昭坚决主张抗敌的一组是(3分)
①今天子圣政一新矣②取传禅诏赦宣读之
③汝辈背义偷生,不异犬彘 ④妻子不可为贼污
⑤大丈夫一生之事毕矣 ⑥昭跃马从缺城出
A. ①②④ B.①③⑥
B. ②⑤⑥
C. ③④⑤
[单选题]Why did American city residents want to live in the suburbs after World War Ⅱ?
A. Because older American cities were dying.
B. Because they were richer and needed more space.
C. Because cities contained the wont pare of society.
D. Because they could hardly afford a live in the city.
[单选题]细胞有丝分裂(cell mitosis)在胞质分裂时,出现的成膜体(phragmoplast)是由( )构成。
A. 微管
B. 微丝
C. 中间纤维
D. 微管与微丝
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