如图，AB∥DF，AC⊥BC于C，BC与DF交于点E，若∠A=20°，则∠CEF等于[    ]

已知有向图G，V（G）={0，1，2，3，4}，E（G）={[0,1], [1,2], [2,0], [2,4], [3,0], [3,2], [3,4],[4,0]}，则顶点0的入度为_________。

float f[][][] = new float[3][][]；  float f0 = 1.0f；  float[][] farray = new float[1][1]；  What is valid？（） A:  f[0] = f0； B:  f[0] = farray； C:  f[0] = farray[0]； D:  f[0] = farray[0][0]；

What is the Cost of Goods Sold using the Weighted Average Method 未知类型：{'options': ['[TABLE border=0 cellSpacing=0 cellPadding=0 width="90%"][TBODY][tr][TD vAlign=top]A. $3604.02. [/tr][/]', '[TABLE border=0 cellSpacing=0 cellPadding=0 width="90%"][TBODY][tr][TD vAlign=top]B. $2918.00. [/tr][/]', '[TABLE border=0 cellSpacing=0 cellPadding=0 width="90%"][TBODY][tr][TD vAlign=top]C. $4142.00.[/tr][/]'], 'type': 102}

年报应于年度终了后( )报出。 未知类型：{'options': ['[TABLE border=0 cellSpacing=0 cellPadding=0 width="90%"][TBODY][tr][TD vAlign=top]A．1个月 [/tr][/]', '[TABLE border=0 cellSpacing=0 cellPadding=0 width="90%"][TBODY][tr][TD vAlign=top]B．2个月 [/tr][/]', '[TABLE border=0 cellSpacing=0 cellPadding=0 width="90%"][TBODY][tr][TD vAlign=top]C．3个月 D_4个月[/tr][/]'], 'type': 102}

Which of the following is least likely to be considered an off balance sheet debt 未知类型：{'options': ['[TABLE border=0 cellSpacing=0 cellPadding=0 width="90%"][TBODY][tr][TD vAlign=top]A. Take-or-pay contract. [/tr][/]', '[TABLE border=0 cellSpacing=0 cellPadding=0 width="90%"][TBODY][tr][TD vAlign=top]B. Capital lease. [/tr][/]', '[TABLE border=0 cellSpacing=0 cellPadding=0 width="90%"][TBODY][tr][TD vAlign=top]C. Sale of receivables.[/tr][/]'], 'type': 102}

Professional organizations of accountants and auditors that establish financial reporting standards are called: 未知类型：{'options': ['[TABLE border=0 cellSpacing=0 cellPadding=0 width="90%"][TBODY][tr][TD vAlign=top]A. Regulatory authorities. [/tr][/]', '[TABLE border=0 cellSpacing=0 cellPadding=0 width="90%"][TBODY][tr][TD vAlign=top]B. Financial services authorities. [/tr][/]', '[TABLE border=0 cellSpacing=0 cellPadding=0 width="90%"][TBODY][tr][TD vAlign=top]C. Standard setting bodies.[/tr][/]'], 'type': 102}

If a firm chooses a capital lease over an operating lease, it can expect to have a: 未知类型：{'options': ['[TABLE border=0 cellSpacing=0 cellPadding=0 width="90%"][TBODY][tr][TD vAlign=top]A. lower debt-to-equity ratio. [/tr][/]', '[TABLE border=0 cellSpacing=0 cellPadding=0 width="90%"][TBODY][tr][TD vAlign=top]B. higher debt-to-equity ratio. [/tr][/]', '[TABLE border=0 cellSpacing=0 cellPadding=0 width="90%"][TBODY][tr][TD vAlign=top]C. higher return on assets.[/tr][/]'], 'type': 102}

Changes in a bond's cash flows associated with changes in yield would be reflected in the bond's: 未知类型：{'options': ['[TABLE border=0 cellSpacing=0 cellPadding=0 width="90%"][TBODY][tr][TD vAlign=top]A. modified duration. [/tr][/]', '[TABLE border=0 cellSpacing=0 cellPadding=0 width="90%"][TBODY][tr][TD vAlign=top]B. effective duration. [/tr][/]', '[TABLE border=0 cellSpacing=0 cellPadding=0 width="90%"][TBODY][tr][TD vAlign=top]C. macaulay duration.[/tr][/]'], 'type': 102}

过失犯罪的形态包括( )。 未知类型：{'options': ['[TABLE cellSpacing=0 cellPadding=0 width="90%" border=0][TBODY][tr][TD vAlign=top]犯罪既遂 [/tr][/]', '[TABLE cellSpacing=0 cellPadding=0 width="90%" border=0][TBODY][tr][TD vAlign=top]犯罪预备 [/tr][/]', '[TABLE cellSpacing=0 cellPadding=0 width="90%" border=0][TBODY][tr][TD vAlign=top]犯罪未遂 D，犯罪中止[/tr][/]'], 'type': 102}