
【名词&注释】
同工酶(isozyme)、孢子囊(sporangium)、血清学方法(serological method)、韧皮部(phloem)、电泳分析(electrophoresis)、初生木质部(primary xylem)、分类学价值
[单选题]根尖分生区的细胞主要进行( )。
A. 平周分裂
B. 垂周分裂
C. 横分裂
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举一反三:
[多选题]Who mentions the transporting of the battery?
A. P.S.
C. L.
D. M.
E.
F. T.K.
[单选题]根和茎在形成次生结构后,未被破坏的初生结构是( )。
A. 表皮
B. 皮层
C. 初生韧皮部
D. 初生木质部(primary xylem)
[单选题]What does Karen Pickering put on top of her diary?
A. Her training schedule.
B. Her daily happenings.
C. Her achievements.
D. Her sports career.
[单选题]—According to my grandma, it is a good idea to eat chicken soup when you have a cold.----_____, scientists agree with her.
A. Sooner or later
B. Once in a while
C. To be exact
D. Believe it or not
[单选题]孢囊孢子是在孢子囊内形成的游动孢子。( )
A. 正确
B. 错误
[单选题]47___
A. easily
B. carefully
C. confidently
D. proudly
[单选题]研究蛋白质的分类学价值时采用以下各种研究方法[除( )以外]。
A. 血清学方法
B. 电泳分析
C. 同工酶电泳
D. 分子杂交
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