陶瓷材料的晶体缺陷有()、()、(),其中()与()有直接关系。;
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某企业发行五年期一次还本付息债券10万元,年利率6%,单利计息,评估基准日至到期日还有3年,若以国库券利率5%作为无风险报酬率,风险报酬率取3%,则该债券的评估价值最接近于()元。
A. 93672
B. 103198
C. 111454
D. 120370
A casualty report of an intentional grounding of a ship is required under what condition?()
A. Under any condition
B. If the grounding lasts over 24 hours
C. If it creates a hazard to the environment
D. At the owner's discretio