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【多选题】
曲柄连杆机构的作用是()
A.
将燃料的热能转变为机械能。
B.
对外输出动力
C.
将活塞的往复运动转变为曲轴的旋转运动
D.
消耗能量
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【单选题】The beginning cash balance was $5 100. At the end of the period, the balance was $7 000. If total cash paid out during the period was $24 000, the amount of cash receipts was:
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【单选题】A firm reported ($ in millions) net cash inflows (outflows) as follows: operating $75, investing ($200), and financing $350. The beginning cash balance was $250. What was the ending cash balance?
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B.
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【判断题】The statement of cash flows explains the difference between the beginning and ending balances of cash and cash equivalents.
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查看完整题目与答案