萝摩科植物花较特化，具多种特殊构造，但并无( )。

【名词&注释】

有丝分裂(mitosis)、染色体(chromosome)、最佳时期(optimum period)、合蕊柱(gynostemium)

[单选题]萝摩科植物花较特化，具多种特殊构造，但并无( )。

A. 副萼
B. 载粉器
C. 花粉块
D. 合蕊柱^{(gynostemium)}

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举一反三：

[单选题]Which of the following is the correct order to describe Fitzgerald’s life according to the passage?a. He became addicted to drinking.

A. b. He studied at St.Paul Academy.
B. c. He published his first novel This Side of Paradise.
C. d. The Great Gatsby won high praise.
D. e. He failed to reorder his life.
E. f. He joined the army and met Zelda.
F. f-c-e-a-b-d
G. b-e-a-f-c-d
H. f-d-e-c-b-a
I. b-f-c-d-e-a

[单选题]有丝分裂过程中，观察染色体数目的最佳时期是( )。

A. 前期
B. 中期
C. 后期
D. 末期

[单选题]43___

A. message
B. motto
C. saying
D. suggestion

[单选题]

A. warm
B. broken
C. closed
D. open

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