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【单选题】
听力原文:M: I've got to admit you have a beautiful backyard, Nancy. How do you do it? W: Well, I've got a few secrets... M: OK, OK, what do I have to do to get you to reveal your secrets? You know if I had the money, I'd just hire a gardener. W: No, no you needn't do that. Why, working in the yard is the greatest form. of relaxation that I know of! M: You're kidding, right?! I would never have planted so many trees if I had known how much work they'd require. W: You see, that's your problem. Your attitude is all wrong. M: My attitude is wrong? What does attitude have to do with gardening? W: You've got to love working in the backyard-that's my secret! M: Love working in the backyard--I can't believe what you're saying. Let me see if I understand this:...If I had a better feeling about my work in the garden, everything would be wonderful. I'd have a beautiful lawn like you I'd have healthy plants like you. W: ... yes, that's it. You've got it! M: Look, to tell you the truth, I think you're crazy! W: Oh, Fred, what you put into the land you reap. M: I think I'll just pay a gardener. W: Well, that won't work. M: Why not? W: Because he has to enjoy his gardening... M: Please, Nancy, thank you very much for your advice. But, don't start it again! What does the man admire about his neighbor?
A.
Her house.
B.
Her backyard.
C.
Her secrets.
D.
Her trees.
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举一反三
【单选题】下图是基因型为AaBb的生物自交产生后代的过程,基因的自由组合定律发生于()
A.
B.
C.
D.
【单选题】大肠杆菌的拉丁文学名是( )。
A.
Escherichia coli
B.
Pseudomonas putida
C.
Streptomyces canus
D.
yeast
【单选题】基因重组发生在有性生殖过程中控制不同性状的基因的自由组合时,下列有关基因重组的说法正确的是 [     ]
A.
有细胞结构的生物都能够进行基因重组
B.
基因突变、基因重组都能够改变基因的结构
C.
基因重组发生在初级精(卵)母细胞形成次级精(卵)母细胞过程中
D.
在减数分裂四分体时期非同源染色体的互换也是基因重组
【单选题】具凉血止血作用的药材是()
A.
艾叶
B.
紫苏叶
C.
侧柏叶
D.
银杏叶
E.
大青叶
【单选题】猩红热的传染途径是
A.
接触传播
B.
飞沫传播
C.
共同媒介传播
D.
生物媒介传播
【单选题】具凉血止血作用的药材是
A.
艾叶
B.
侧柏叶
C.
紫苏叶
D.
银杏叶
E.
番泻叶
【单选题】大肠杆菌的拉丁文命名正确的为()。
A.
escherichia coli
B.
Escherichia Coil
C.
Escherichia coli
D.
escherichia Coli
【单选题】等位基因的分离、非等位基因的自由组合、基因的交换分别发生在减数分裂中的时期是 [     ]
A.
均发生在减数第一次分裂的后期
B.
减数第一次分裂前期、减数第一次分裂后期和减数第二次分裂后期
C.
均发生在减数第二次分裂后期
D.
减数第一次分裂后期、减数第一次分裂后期和减数第一次分裂前期
【单选题】具凉血止血作用的药材是
A.
艾叶
B.
紫苏叶
C.
侧柏叶
D.
银杏叶
【单选题】大肠杆菌的拉丁文名称为
A.
Escherichia coli
B.
Escherichia coli
C.
Escherichia Coli
D.
Escherichia Coli
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