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【单选题】
气动系统主要的调速方法是A.
排气节流调速
B.
进气节流调速
C.
旁路节流调速
D.
容积节流调速
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皮皮学刷刷变学霸
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【简答题】计算 ，其中Ω是由平面x+y+z=1与三个坐标面围成的区域．
【简答题】求与两个已知平面∏ 1 ：2x-y+z+1=0，∏ 2 ：x+y+z=0都垂直，并且与坐标原点相距为3的平面方程．
【简答题】Mary Kay Inc., one of the largest direct sellers of skin care and color cosmetics in the world, achieved another year of record results in 2003, reaching nearly $1.8 billion in wholesale sales. The c...
【单选题】Not only ______ what to do, but he also lent me the money.
A.
he advises me
B.
does he advise me
C.
did he advise me
D.
he advised me
【单选题】Information for Garner Company’s direct-labor costs for the month of September 2005 was as follows: Actual direct-labor hours 34,500 hours Standard direct-labor hours 35,000 hours Total direct-labor p...
A.
$21,000 favorable
B.
$21,000 unfavorable
C.
$17,250 unfavorable
D.
$20,700 unfavorable
【单选题】William company’s direct labor cost is 25% of its conversion cost. If the manufacturing overhead for the last period was $45,000 and the direct material cost was $25,000, the direct labor cost was
A.
$15,000
B.
$60,000
C.
$33,333
D.
$20,000
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