请问一下为什么不是C？问题如下图：
选项：
A. 
B. 
C. 
解释：
品职辅导员_小明 · 2018年08月10日
1. accrued revenue，东西卖出去之后没有收到钱
unearned revenue, 例如学费，我们在开学的时候交学费，那么学校就会记unearned revenue.
这道题是在说engineer在8月30号就给A公司安装好了打印机，是这属于 accrued revenue。
2. accrued expense和accounts payable之间有一个开没开票的区别，A公司在收到发票之前，是accrued expense,在收到发票之后是accounts payable。
所以8月31号还没有收到发票，因此是accrued expense。
因此不选C
NO.PZ2016012102000011 问题如下 engineer installethe printer for company A on Aug 30 ansent the invoito the company on Sep 2. If the engineer anthe company both prepare financistatements unr the accrumethoon Aug 31, how this transaction will recognizeeaof them ? EngineerCompany A.AccruerevenueAccrueexpense B.AccruerevenuePrepaiexpense C.Unearnerevenueaccounts payable A is correct.The engineer provithe servibefore pai So the engineer will recorthis transaction accruerevenue ancompany A will recorit accrueexpense.Because the invoihnot been sent out the statement te, it cnot shown in accounts receivable or accounts payable.考点财务报表科目工程师在付款前，已经提供了服务(installethe printer on Aug 30)，根据权责发生制（accrumetho，需要确认收入(工程师)和费用(A公司)。所以工程师应将这笔交易记录为应计收入(Accruerevenue)，A公司应将其记录为应计费用(Accrueexpense)。由于发票在报表日期尚未寄出，因此无法确认应收账款或应付账款中。 accruerevenue和accrueexpense中文叫啥？是资产负债表上的哪个科目
NO.PZ2016012102000011问题如下 engineer installethe printer for company A on Aug 30 ansent the invoito the company on Sep 2. If the engineer anthe company both prepare financistatements unr the accrumethoon Aug 31, how this transaction will recognizeeaof them ?EngineerCompany AA.AccruerevenueAccrueexpenseB.AccruerevenuePrepaiexpenseC.Unearnerevenueaccounts payable A is correct.The engineer provithe servibefore pai So the engineer will recorthis transaction accruerevenue ancompany A will recorit accrueexpense.Because the invoihnot been sent out the statement te, it cnot shown in accounts receivable or accounts payable.考点财务报表科目工程师在付款前，已经提供了服务(installethe printer on Aug 30)，根据权责发生制（accrumetho，需要确认收入(工程师)和费用(A公司)。所以工程师应将这笔交易记录为应计收入(Accruerevenue)，A公司应将其记录为应计费用(Accrueexpense)。由于发票在报表日期尚未寄出，因此无法确认应收账款或应付账款中。 两个人为什么不能分别记为accounts receivable和accounts payable？
NO.PZ2016012102000011问题如下engineer installethe printer for company A on Aug 30 ansent the invoito the company on Sep 2. If the engineer anthe company both prepare financistatements unr the accrumethoon Aug 31, how this transaction will recognizeeaof them ?EngineerCompany AA.AccruerevenueAccrueexpenseB.AccruerevenuePrepaiexpenseC.Unearnerevenueaccounts payable A is correct.The engineer provithe servibefore pai So the engineer will recorthis transaction accruerevenue ancompany A will recorit accrueexpense.Because the invoihnot been sent out the statement te, it cnot shown in accounts receivable or accounts payable.考点财务报表科目工程师在付款前，已经提供了服务(installethe printer on Aug 30)，根据权责发生制（accrumetho，需要确认收入(工程师)和费用(A公司)。所以工程师应将这笔交易记录为应计收入(Accruerevenue)，A公司应将其记录为应计费用(Accrueexpense)。由于发票在报表日期尚未寄出，因此无法确认应收账款或应付账款中。 应计收入到应收账款，应计费用到应付费用，需要怎么认定？
NO.PZ2016012102000011问题如下 engineer installethe printer for company A on Aug 30 ansent the invoito the company on Sep 2. If the engineer anthe company both prepare financistatements unr the accrumethoon Aug 31, how this transaction will recognizeeaof them ?EngineerCompany AA.AccruerevenueAccrueexpenseB.AccruerevenuePrepaiexpenseC.Unearnerevenueaccounts payable A is correct.The engineer provithe servibefore pai So the engineer will recorthis transaction accruerevenue ancompany A will recorit accrueexpense.Because the invoihnot been sent out the statement te, it cnot shown in accounts receivable or accounts payable.考点财务报表科目工程师在付款前，已经提供了服务(installethe printer on Aug 30)，根据权责发生制（accrumetho，需要确认收入(工程师)和费用(A公司)。所以工程师应将这笔交易记录为应计收入(Accruerevenue)，A公司应将其记录为应计费用(Accrueexpense)。由于发票在报表日期尚未寄出，因此无法确认应收账款或应付账款中。 没说付没付钱吧，如果付了那不就变成prepaiexpense了？
NO.PZ2016012102000011问题如下engineer installethe printer for company A on Aug 30 ansent the invoito the company on Sep 2. If the engineer anthe company both prepare financistatements unr the accrumethoon Aug 31, how this transaction will recognizeeaof them ?EngineerCompany AA.AccruerevenueAccrueexpenseB.AccruerevenuePrepaiexpenseC.Unearnerevenueaccounts payable A is correct.The engineer provithe servibefore pai So the engineer will recorthis transaction accruerevenue ancompany A will recorit accrueexpense.Because the invoihnot been sent out the statement te, it cnot shown in accounts receivable or accounts payable.考点财务报表科目工程师在付款前，已经提供了服务(installethe printer on Aug 30)，根据权责发生制（accrumetho，需要确认收入(工程师)和费用(A公司)。所以工程师应将这笔交易记录为应计收入(Accruerevenue)，A公司应将其记录为应计费用(Accrueexpense)。由于发票在报表日期尚未寄出，因此无法确认应收账款或应付账款中。 公司付了钱 但是没有收到invoi所以选b？