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【多选题】
调节直流电动机转速的方法有()?A.
调阻调速
B.
调频调速
C.
调磁调速
D.
调转差率调速
E.
调压调速
F.
调磁极对数调速
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举一反三
【简答题】施工测量与地形测量有何异同？
【单选题】According to this letter, Santiago’s dream about the lions implies that the old man has .
A.
spiritual victory
B.
unfailing courage
C.
knowledge of life
【单选题】军事运筹学的工作步骤, 往往按照以下步骤：①. 提出和形成问题；②. 解的检验；③. 建立模型； ④. 求解(最优解、次优解、近似最优解、满意解、非劣解)；⑤. 解的控制；⑥. 解的实施。以上步骤的正确顺序是（ ）
A.
① ③ ② ④ ⑤ ⑥
B.
① ③ ② ⑤ ④ ⑥
C.
① ② ③ ④ ⑤ ⑥
D.
① ③ ④ ② ⑤ ⑥
【简答题】运筹学的工作步骤是:提出和形成问题、()、求解、()、解的控制、解的实施。
【单选题】The passage implies that ______ to have a man in a computer company to answer questions.
A.
it is very helpful
B.
it is very difficult
C.
it is unnecessary
D.
it is very safe
【单选题】军事运筹学的工作步骤, 往往按照以下步骤: 1. 提出和形成问题; 2. 解的检验; 3. 建立模型; 4. 求解(最优解、次优解、近似最优解、满意解、非劣解); 5. 解的控制; 6. 解的实施。 以上步骤的正确顺序是( ) 。
A.
①③②④⑤⑥
B.
①③②⑤④⑥
C.
①②③④⑤⑥
D.
①③④②⑤⑥
【简答题】The writer implies that the shepherd-sheepdog whistle language is still biased because _________. A) it can only be used to give orders B) it is not natural for both shepherd and sheepdog C) it is a o...
【判断题】听材料,判断对错 The woman implies that the man is ungrateful in deciding to leave.
A.
正确
B.
错误
【单选题】The writer implies that the shepherd-sheepdog whistle language is still biased because ____________
A.
it can only be used to give orders
B.
it is not natural for both shepherd and sheepdog
C.
it is a one-way communication approach
D.
it can only be used between man and dog
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