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【单选题】
供应链是一个（）系统，它包括不同环节之间持续不断的信息流、产品流和资金流。A.
复杂的
B.
稳定的
C.
独立的
D.
动态的
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【单选题】— What's the matter? Your eyes look red. — My eyes haven't ______ the new glass yet. [ ]
A.
applied to
B.
adjusted to
C.
accessed to
D.
approached to
【单选题】Ann has red hair and blue eyes. Tom has black hair and brown eyes. They have _____ _____ . [ ]
A.
look different
B.
different look
C.
different looks
【单选题】A: which dog is yours? B: Look over there. The one _____. [ ]
A.
with eyes widely open
B.
has eyes open wide
C.
with eyes wide open
D.
has eyes widely open
【单选题】You have black hair and black eyes. I have blond hair and blue eyes. We .
A.
look the same
B.
look different
C.
are in different grade
【简答题】渐开线齿廓的啮合特性是什么？
【简答题】渐开线齿廓的啮合特性是什么?
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