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【单选题】
下列有关遗传学经典实验中的材料、方法及结论的叙述,错误的是A.
通过豌豆杂交实验发现了分离和自由组合定律
B.
沃森和克里克通过同位素标记法发现了DNA的双螺旋结构
C.
萨顿采用类比推理法,提出了基因位于染色体上的观点
D.
摩尔根运用假说演绎法,证明了基因位于染色体上
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【单选题】.I’m _____Helen. Have you seen her? (A) A. B. C. D.
A.
looking for
B.
looked for
C.
looks for
D.
look for
【单选题】Have you seen her _____ movie? It has very good reviews.
A.
latest
B.
last
C.
late
D.
latter
【简答题】When driving in an automated lane, the driver ________. A) should harmonize with newly entering cars B) doesn’t have to rely on his computer system C) should watch out for potential accidents D) doesn...
【单选题】The taxi driver often reminds passengers to ______their belongings when they leave the car.
A.
keep
B.
catch
C.
hold
D.
take
【单选题】The taxi driver often reminds passengers to ______their belongings when they leave the ear.
A.
keep
B.
catch
C.
hold
D.
take
【简答题】 Have you seen her ________ (最新的)movie?
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