Jill Davis tells her broker that she does not want to sell her stocks that are below the price she paid for them. She believes that if she just holds on to them a little longer they will recover, at which time she will sell them. What behavioral characteristic does Davis have as the basis for her decision making?
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易燃固体在储存、运输、装卸过程中,应注意轻拿轻放,避免出现摩擦、撞击等,是因为它具有_______的危险特性。
A. 燃点低,易点燃
B. 遇酸、氧化剂易燃易爆
C. 本身或燃烧产物有毒
D. 自燃性
粉尘爆炸具有多种危害,关于它的危害性,下列说法不正确的是_______。
A. 具有极强的破坏性
B. 离起火点越近,破坏性
C. 容易产生二次爆炸
D. 能产生有毒气体
张先生,50岁,25年吸烟史,本人无糖尿病,血压150/90mmhg,体质指数25,总胆固醇5.46mmol/L,经常用冠心病和脑卒中综合危险度评估波对张先生评估,评估结果为:张先生的缺血性心血管病的患病风险是7.6,比一般人群高2.8倍,应建议他尽快控制健康危险因素,降低发病的风险,请根据张先生情况回答一下问题(本题总分20分)
2、请根据心血管疾病风险评估的方法,列出参与评估的危险因素,并指出哪些是可以改变危险因素的?