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【多选题】
研究机器人运动学的目的：① __________；② __________。A.
给定机器人各关节变量，计算机器人末端的位置姿态
B.
已知机器人末端的位置姿态，计算机器人对应位置的全部关节变量
C.
确定机器人关节的运动速度与负载之间的关系
D.
确定机器人关节的输出力矩与转动角度之间的关系
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举一反三
【简答题】"It started with casual Fridays and got out of hand," says June Webb, a fashion consultant in Alexandria. (Para. 4) Q: What does June Webb mean in his quotation?
【单选题】What does the speaker say is the easier thing we can do?
A.
Allow kids to learn at their own pace.
B.
Encourage kids to learn from each other.
C.
Organize kids into various interest group.
D.
Take kids out of school to learn at first hand.
【单选题】What does the woman say she will hand out?
A.
An outline
B.
A handbook
C.
A contract
D.
A memorandum
【判断题】判断题 Hooray! It's snowing! It's time to make a snowman.James runs out. He makes a big pile of snow. He puts a big snowball on top. He adds a scarf and a hat. He adds an orange for the nose. He adds coa...
A.
正确
B.
错误
【单选题】What does the author mean by saying “ the boy who has the genius ... try his hand at the broom ” (Line 6-8, Paragraph 1)?
A.
A promising young man will do less important work when needed.
B.
A wise starter will do whatever necessary so as to keep his position.
C.
Anyone who wants to be successful should take some trivial work first.
D.
The newest comers ready to sweep out the office will be successful.
【单选题】What does the speaker say is the easier thing we could do ?
A.
Allow kids to learn at their own pace.
B.
Encourage kids to learn from each other.
C.
Organize kids into various interest groups.
D.
Take kids out of school to learn at first hand.
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