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【简答题】
由植物叶片分离单细胞的方法有机械法和（）
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反馈参考答案：
举一反三
【单选题】While most early robot designers equipped their robots with 'legs,' more recent robot designers have opted for movable treads, which make continual contact with the ground over a wide area in contrast...
A.
in contrast with
B.
rather than at
C.
as opposed to at
D.
instead of
E.
as against
【简答题】阅读理解。 Suppose we built a robot to explore the planet, Mars.We provide the robot with seeing detector (探 测器) to keep it away from er. It is powered entirely by the sun. Should we program the robot ...
【单选题】tuple = ( 'robot', 1122 , 2.23, 'robot', 99.8 ) ,语句 print (tuple[-1:3:-2]) 的输出是
A.
(99.8,)
B.
()
C.
(robot)
D.
('robot')
【单选题】Sony created a consumer-robot market by ______.
A.
lowering prices
B.
marketing a robot dog
C.
attending RoboCup
D.
virtue of its reputation
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