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【单选题】
已知平面上直线 的方向向量 =( ),点 和 在 上的射影分别是 和 ，则 = ,其中 等于A.
B.
-
C.
2
D.
-2
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反馈参考答案：
举一反三
【简答题】汽车的稳态转向特性可分为 、 和 三类。
【简答题】汽车的稳态转向特性可分为 、 和 三大类。
【简答题】汽车的稳态转向特性可分为 、 、 三大类。
【单选题】The students hoped that their choice of play would be______with their parents.
A.
popular
B.
fascinated
C.
favorable
D.
recognized
【简答题】Choose the best choice from A to F to finish the dialogue. You have one more answer. Each choice should be used only once. J-Jenny B-Bernard J: Bernard, 1______ B: It's June 19th. Oh, it's Father's D...
【简答题】Choose the best response from A to F according to the sentences given .Each choice should be used only once 小题1:I’m afraid I can’t return the dictionary to you before Thursday . 小题2:Are they coming to...
【简答题】Choose the best response from A to F according to the sentences given. Each choice should be used only once. (A man and a woman are talking at the Shanghai Hongqiao Airport) M: The airplanes are late,...
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