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【单选题】
平面与圆柱相交时产生的截交线有() 种情况。A.
1 种
B.
2 种
C.
3 种
D.
5 种
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举一反三
【单选题】Proper filtering and straining of fuel oil is important because the _____.
A.
fuel oil pump will over-speed if dirt is not removed
B.
fuel oil transfer pumps cannot tolerate small amounts of dirt in the oil
C.
fuel injectors may be damaged by foreign particles in the fuel oil
D.
dirty fuel will clog the intake air filter
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