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【单选题】
化学与生产生活、环境保护密切相关。下列说法中不正确的是A.
加热能杀死流感病毒是因为病毒的蛋白质受热变性
B.
人造纤维、合成纤维和光导纤维都是有机高分子化合物
C.
方便面的制作过程中常用到纯碱，葡萄酒中一般加入少量SO 2 作为添加剂
D.
绿色化学的核心是利用化学原理从源头上减少和消除工业生产对环境的污染
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举一反三
【简答题】已知二维数组 A [10..20][5..10] ,采用行序为主方式存储,每个元素占 4 个存储单元,并且 A [10][5] 的存储地址是 1000 ,则 A [18][9] 的地址是 __________________ 。
【简答题】看跌期权(put option)
【简答题】看跌期权(put option)
【单选题】Which of the following is NOT true for the writer of a put option?
A.
The maximum loss is limited to the strike price of the underlying asset less the premium.
B.
The gain or loss is equal to but of the opposite sign of the buyer of a put option.
C.
The maximum gain is the amount of the premium.
D.
All of the above are true.
【单选题】A put option allows the holder to ( ).
A.
buy the underlying asset at the strike price on or before the expiration date.
B.
sell the underlying asset at the strike price on or before the expiration date.
C.
sell the option in the open market prior to expiration.
D.
sell the underlying asset at the strike price on or before the expiration date and sell the option in the open market prior to expiration.
E.
buy the underlying asset at the strike price on or before the expiration date and sell the option in the open market prior to expiration.
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