问题
单项选择题
以下哪项符合等中心照射摆位要求（）
A、源皮距固定
B、不使用源轴距对距离
C、先给好角度再多源皮距
D、限皮距较大
E、一般采用中心十字照射野
答案
参考答案：E
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以下哪项符合等中心照射摆位要求（）
A、源皮距固定
B、不使用源轴距对距离
C、先给好角度再多源皮距
D、限皮距较大
E、一般采用中心十字照射野
参考答案：E
George Mote owns stock in IBM currently valued at $112 per share. Mote writes a call option on IBM with an exercise price of $120. The call option is sold for $1.80. At expiration, the price of IBM is $115. What is Mote’s profit (or loss) from his covered call strategy Mote:
A．
| A. gained $3.00. |
B．
| B. lost $1.80. |
C．
| C. gained $4.80. |