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【判断题】
( )规定负载功率与网络的 的比值为网络的效率,用η表示,则 ,R L =R 0 ,即网络输出最大功率时的效率只为50%,当负载电阻R L 》R 0 时,电力系统中电源传输电的效率才比较高。A.
正确
B.
错误
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举一反三
【单选题】Assets acquired by the issuance of equity securities are valued based on:
A.
Their fair values.
B.
The fair value of the equity securities.
C.
The fair value of the assets acquired or the fair value of the equity securities, whichever is more reasonably determinable.
D.
The fair value of the assets acquired or the fair value of the equity securities, whichever is smaller.
【单选题】Available-for-sale equity securities:
A.
Are recorded at cost when acquired.
B.
May earn dividends that are reported in that year's income statement.
C.
May be classified as either short-term or long-term securities.
D.
Are reported at market value on the balance sheet.
E.
All of the choices describe available-for-sale equity securities.
【简答题】服装起源学说不包括下列哪项() A自然说 B象征说 C气候适应 D遮羞说
【单选题】All of the following statements regarding equity securities are true except:
A.
Equity securities should be recorded at cost when acquired.
B.
Equity securities are valued at fair value if classified as trading securities.
C.
Equity securities are valued at fair value if classified as significant influence securities.
D.
Equity securities are valued at fair value if classified as available-for-sale securities.
E.
Equity securities classified as available-for-sale record the dividend revenue when received.
【简答题】碘价的高低表示 。
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