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问题 单项选择题

女性，30岁，因二尖瓣狭窄做了手术，术前肝功正常。HbsAg(-)，术中输血800ml，40天后肝功能ALT280IU/L，AST160IU/L，Tbil18μmol/L。

ALT及AST增高的原因可能为( )

A．急性甲型病毒性肝炎

B．急性乙型病毒性肝炎

C．急性丙型病毒性肝琰

D．急性丁型病毒性肝炎

E．急性戊型病毒性肝炎

答案

参考答案：C

选择题

如图所示，理想变压器的原线圈匝数为n1=1000匝，副线圈匝数为n2=500匝。原线圈接在220V的交流电源上，副线圈接有R=100Ω的负载电阻。电流表、电压表均为理想电表。下列说法中不正确的是       

A．电压表的示数为110V

B．电流表的示数为1.1A

C．原、副线圈的电压之比为2∶1

D．输入功率与输出功率之比为1∶1
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问答题

Pious, a Church Minister, asked one of his parishioners Short, an accountant, to prepare the fi nancial statements for the church. Short agreed to perform the service at no charge. He instructed a trainee accountant, Bruce, to do the work but not to spend too much time at it.Bruce immediately worked on the assignment but he did not follow ordinary accounting procedures, which would have revealed that a church employee, Smart Alec, was regularly stealing from the church’s funds. This carried on for two years and the church lost $20,000 due to Smart Alec’s stealing.Required:In relation to the law of obligations explain whether Short would be liable to the church for the sum of $20,000·00 for failing to timeously discover Smart Alec’s fraud. (10 marks)
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