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【单选题】
设α为任意直线的倾斜角,则倾斜角α的范围为( )A.
0°
B.
0°≤α≤180°
C.
0°≤α<180°< /div>
D.
0°
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A.
increase the refrigerating effect, by decreasing the amount of flash gas
B.
allow the refrigerant to enter the throttling device in a saturated condition
C.
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D.
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A.
expansion
B.
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C.
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D.
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A.
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B.
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C.
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D.
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A.
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B.
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C.
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D.
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E.
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A.
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B.
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C.
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