在多米诺骨牌系列中,一颗骨牌被碰倒了,则其余的几颗骨牌相继被碰倒。这用( )理论可 发布时间:2018-01-11 05:49 │ 来源:www.tikuol.com 题型:单项选择题 问题: 在多米诺骨牌系列中,一颗骨牌被碰倒了,则其余的几颗骨牌相继被碰倒。这用( )理论可以解释。A.事故频发倾向B.海因里希因果连锁C.能量意外释放D.系统安全
题型:单项选择题 An investor buys two calls and one put on ABC stock, all with a strike price of $45. The calls cost $5 each, and the put costs $4. If the investor closes the position when ABC is priced at $55, the investor's per share gain or loss is :A.A. $4 loss. B.B. $6 gain. C.C. $10 gain. 查看答案
题型:单项选择题 风燥咳嗽主证为()A.久咳,干咳少痰或痰中带血,午后潮热 B.久咳气逆,干咳少痰,咳引胸胁痛 C.久咳痰多,痰白易出,胸脘痞闷 D.咳嗽新起,咽干鼻燥,咳声嘶哑,痰少稠黏,难以咯出 E.咳嗽新起,咳声粗亢,痰稠色黄 查看答案