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【单选题】
攻丝时,为适应不同的加工材料,以改善其切削性能,可修磨丝锥的()A.
切削部分后刀面
B.
校准部分前刀面
C.
切削部分前刀面
D.
校准部分后刀面
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知识点：
皮皮学刷刷变学霸
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【简答题】有效需求(Effective Demand)
【简答题】The time it takes for ZYBAN to be effective is
【简答题】A．Person who is an effective leader of a particular group may not be an effective leader in another group. B．Few people succeed in sharing a leadership role with another person. C．A person can best le...
【多选题】What are the elements of an effective presentation?
A.
Effective organization of information
B.
Effective delivery of information
C.
Effective use of language
【单选题】My mother _________ an artist. [ ]
A.
wants is
B.
want to be
C.
wants be
D.
wants to be
【单选题】What is this passage mainly about?
A.
Effective control over volcanic eruptions.
B.
Effective prediction about lahars.
C.
Damage of volcanic eruptions to human beings.
D.
Perspective of prediction about volcanic eruptions.
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