时间继电器用于控制回路中，使控制的元件或设备按指定的时间作（）动作。
参考答案：延时
Which of the following statements about put and call options is FALSE()
A. The price of the option is less volatile than the price of the underlying stock.
B. Option prices are generally higher the longer the time till the option expires.
C. For put options, the higher the strike price relative to the stock’s underlying price, the more the put is worth.
我国古代最早的医学教育机构形成于（）时期（）时期医学教育出现快速发展势，建立政府医药兼教育机构（）
