投资组合理论,投资组合的整体VaR大于其所包含的每个金融产品的VaR值之和。
参考答案:错
解析:投资组合理论,投资组合的整体VaR小于等于其所包含的每个金融产品的'VaR值之和。
“For those who haven’t been to Tibet, Tibet is a dream; for those who have a 1 been there, Tibet is a remembrance(记忆).” said Li Wan, a graduate from Zhongshan University. “To local Tibetans, Tibet is a way of life. But to me, l 2 there is my life-time goal.”
Ms. Li suddenly showed her strong i 3 in Tibet after having worked in a company for less than three months. Since 1998, Li has spent most of her time in a war that is a challenge(挑战) to her life—she has got to almost every c 4 of Tibet within 8 years.
Li’s first trip to Tibet was only out of her loving freedom. She entered Tibet a 5 the Yunnan-Tibetan road. Although she couldn’t speak a word of Tibetan l 6 , this did not really stop her from t____7____ with local people. “To me, they are free, happy and c 8 to nature. It a 9 to me that people should live in this way, singing while working, dancing while living,” Li said.
Li described Tibet in words and photos. “My goal in the n 10 ten years is to make a good documentary.” said Li.
阅读下面的材料,运用相关知识,劝说担心日本核辐射危机影响我们生活而产生恐慌心理的家人或朋友。
材料一2011年3月11日日本发生里氏9.0级地震,强震引发巨大海啸,并摇动地球地轴,致使日本平移2.4米。地震致使日本福岛第一棱电站发生爆炸,周围居民紧急撤离,目前已确认数十名人员受到核辐射。
材料二 目前,日本福岛核电站泄漏监测到的数据是每卟时1.015mSv。这约相当于①核电站工作人员一年接受的行业辐射。②十次X光检查接受的辐射。③乘飞机239小时接受的辐射。④每个人半年内接受的天然辐射。
材料三中国气象局预报显示,由于目前日本上空为西风,放射性物质对中国暂时没有影响。
(以上材料摘自《家庭保健报》2 011年3月15日第1版)
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