一个信号源的电压Us=40V，内阻R0=200Ω，通过理想变压器接RL＝8Ω的负载。

滑车神经受损时（）

A.眼球向外上方运动障碍

B.眼球向外下方运动障碍

C.眼球向内上方运动障碍

D.眼球向内下方运动障碍

E.眼球向上方注视有复视

肺心病心力衰竭时，强心剂的应用

A．属禁忌症。因易发生中毒 

B．如需用，应给予口服。并迅速达到洋地黄化 

C．常选用作用快，排泻快的强心剂缓慢静注 

D．最好强心剂的同时，并用心得安类药 

E．以心率快慢作为衡量强心剂的疗效

项目资本金的财务现金流量表，要求计算的指标只有资本金的( )。

A．净现值率

B．偿债备付率

C．内部收益率

D．资产负债率

Which of the following statements about closing a futures position through delivery is most accurate()

A. Delivery is also known as exchange for physicals (EFP). 

B. Depending on the wording of the contract, a trader may close a contract by either delivering the goods to a designated location or by making a cash settlement of any gains or losses. 

C. Although the popularity of physical delivery has decreased over time, delivery by cash settlement remains the most popular method of closing a futures position.

胀塑性流体