题目内容

Short conversation 4[音频]

A. He has to sit at the computer for half an hour.
B. He will stop to enjoy a coffee break.
C. He will finish his report soon.
D. He cannot afford to have a coffee break.

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Short conversation 5[音频]

A. She was just telling a joke about quitting her job.
B. She wasn't satisfied with her salary.
C. She was fed up with counting money at her job.
D. She was to quit her job and look for an accounting job.

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锥实螺旋向有左旋和右旋2种表型。一个左旋的锥实螺，自交后仅产生右旋后代，则这个左旋锥实螺的基因型为

A. Dd
B. DD
C. dd
D. 无法确定

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有关母体（性）影响正确的表述是

A. 母体影响属于细胞质遗传
B. 子代表型由细胞质基因控制
C. 子代表型由母本细胞核基因控制
D. 母体影响属于孟德尔遗传

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关于细胞质遗传的正确表述是

A. 由细胞质基因控制
B. 正反交结果不同
C. 属于非孟德尔遗传
D. F1代通常表现为母本性状

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Short conversation 4[音频]

A. He has to sit at the computer for half an hour. B. He will stop to enjoy a coffee break. C. He will finish his report soon. D. He cannot afford to have a coffee break.

Short conversation 5[音频]

锥实螺旋向有左旋和右旋2种表型。一个左旋的锥实螺，自交后仅产生右旋后代，则这个左旋锥实螺的基因型为

有关母体（性）影响正确的表述是

关于细胞质遗传的正确表述是

A. He has to sit at the computer for half an hour.
B. He will stop to enjoy a coffee break.
C. He will finish his report soon.
D. He cannot afford to have a coffee break.