题目内容
以生命风险作为保险事故的人寿保险,其主要风险因素是()。
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睡眠卫生习惯不良
灯光报警信号宜作为音响报警信号的辅助手段。()
Most stockbrokers offer bargain-basement deals on postal trades. They are ideal for selling a small holding for the lowest possible 【C3】______
But the arrangements leave investors 【C4】______ the mercy of the Royal Mail and a seller will not know 【C5】______ how much a sale will produce.
Data 【C6】______ engineer Mark Stanistreet of Bradford sold by post after buying a few National Power and PowerGen shares when they were privatized.
He says: "I 【C7】______ really know where to go to for help. An information 【C8】______ with the shares gave details of Yorkshire Building Society's share shop service, which offered to sell for a flat fee of ￡5. "
"It was an ideal first step that showed me how easy and cheap it is to sell shares. I 【C9】______ in a small way since then."
"I use Yorkshire's telephone service, which has a ￡9 minimum fee."
Many stock brokers offer postal deals as part of their usual dealing services, but clients may 【C10】______ sell only big company or privatization shares this way. ShareLink's minimum postal commission is 7.50, Skipton Building Society's is 9 and Nat West's is 9.95.
【C1】______
马柯威茨理论的最大问题是计算量太大，特别是对大规模的市场存在上千种证券的情况下，哪怕是借助高速计算机也难以实现。()
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