皮皮学，免费搜题
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搜题
【单选题】
What kind of preview (Paragraph 1) did Sue Kirchofer get according to the passage?A.
Non-family beneficiary would not be accepted by the insurance company.
B.
Her sexual partner would not be accepted by her mother.
C.
Her sexual partner would not be accepted by her company.
D.
Her sexual orientation would not be accepted by others.
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参考解析：
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皮皮学刷刷变学霸
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【单选题】一家银行正在考虑在其提供的服务中增加人寿保险承保。据估计, 其传统服务的预期回报率和标差分别为12% 和6%。它还估计, 其新承销服务的预期回报率和标准偏差分别为18% 和10%。这些服务之间的相关性估计为 +0.10, 据估计其业务的90% 将来自传统服务, 10% 来自新的承销服务。新的服务组合的预期回报是什么?
A.
17.4%
B.
12.6%
C.
5.59%
D.
15%