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【单选题】
科学家用人工合成的染色体片段，成功替代了酵母菌的第6号和第9号染色体的部分片段，得到的重组酵母菌能存活，未见明显异常。关于该重组酵母菌的叙述，错误的是______A.
还可能发生变异
B.
表现型仍受环境的影响
C.
增加了酵母菌的遗传多样性
D.
改变了酵母菌的进化方向
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皮皮学刷刷变学霸
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【单选题】What is the difference between “Heel” and “list”?
A.
the ship is said to be heeled when she is inclined by an external force, the ship is said to be listed when she is inclined by a force within the ship.
B.
the ship is said to be heeled when she is inclined by a force within the ship, the ship is said to be listed when she is inclined by an external force.
C.
“heel” refers to mainly large inclination while the “list” refers to small inclination.
D.
“list” refers to mainly large inclination while the “heel” refers to small inclination.
【单选题】儿童力求尽量客观地把握各种现象和事物,把见到的现象、客观形态如实表现出来。这是学前儿童绘画能力发展的哪个阶段()
A.
象征期
B.
涂鸦期
C.
写实倾向期
D.
概念画期
【简答题】A．honor B．house C．horror D．heel
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