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【单选题】
在制动过程分析中，当φ=φ 0 时，制动时总是：（）。A.
前轮先抱死
B.
后轮先抱死
C.
前后轮同时抱死
D.
前后轮都不抱死
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【单选题】Last night 1 saw Tom lying in bed, ____in deep thought.
A.
lost
B.
losing
C.
to lose
D.
being lost
【简答题】Kevin: Hey, Jenny. What's up? Jenny: Not much. Have you seen the new Peachbook (1) computers? They look awesome. Kevin: Yeah, I saw them last night. Which one do you want? Jenny: I want to get the...
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