大件类商品因买家原因发生退货退款、换货、维修事项的，由买家办理退货事宜并承担退货产生的必要费用。必要费用系指包括但不限于（），该等费用以承运物流出具的相关票据上载明的金额为准。
A. 商品拆卸费用
B. 商品打包费用
C. 商品加固费用
D. 商品搬运费用
E. 退货运费
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男性患者，73岁，因急腹症人院，急救过程中先后出现少尿、肺水肿、呼吸困难、嗜睡、意识障碍、消化道出血等症状，应诊断为（）
A. DIC
B. ARF
C. MODS
D. ARDS
E. SIRS
You need to perform certain data manipulation operations through a view called EMP_DEPT_VU, which you previously created. You want to look at the definition of the view (the SELECT statement on which the view was create.) How do you obtain the definition of the view? （）
A. Use the DESCRIBE command in the EMP_DEPT VU view.
B. Use the DEFINE VIEW command on the EMP_DEPT VU view.
C. Use the DESCRIBE VIEW command on the EMP_DEPT VU view.
D. Query the USER_VIEWS data dictionary view to search for the EMP_DEPT_VU view.
E. Query the USER_SOURCE data dictionary view to search for the EMP_DEPT_VU view.
F. Query the USER_OBJECTS data dictionary view to search for the EMP_DEPT_VU view.
（）属于间接接触触电。
A. 跨步电压触电
B. 感应电压触电
C. 雷电触电
D. 静电触电
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