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男，42岁，突然呕鲜血600ml，伴有柏油样便200ml，查体：脾大肋下2cm；实验室检查HBsAg（+）。

为明确出血原因，宜行下列哪项检查（）

A.钡剂检查

B.胃镜检查

C.肝功能

D.骨髓穿刺

E.ECT检查

答案

参考答案：B

单项选择题

在我国东南沿海一带广为流传一首民谣：“天皇皇，地皇皇，莫惊我家小儿郎；倭寇来，不要慌，我有戚爷会抵挡。”这首民谣反映的是哪一历史时期的史实？（）

A.隋朝

B.元朝

C.明朝

D.清朝
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单项选择题

Activity Based Costing (ABC) is an (11) technique that allows an organization to determine the actual (12) associated with each product and service produced by the organization without regard to the organizational structure. This chapter explains some of the uses and benefits of Activity Based Costing. We use IDEFO (13) modeling in conjunction with ABC to enable more effective business (14) design decisions.

In order to achieve the major goals of business process improvement, process simplification and improvement, FAA managers need to fully understand the cost, time, and quality of activities performed by employees or machines throughout an entire organization. ABC methods enable (15) to cost out measurements to business simplification and process improvement.

（15）是（）

A.computers

B.managers

C.clients

D.consumers
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