如果第二双尖牙牙根较短，支持力不足，最佳的固定桥设计是
A. 桥体颌面减轻
B. 增加第一双尖牙作基牙
C. 增加第三磨牙作基牙
D. 缺隙近中为可动连接体
E. 减轻第二双尖牙咬合力
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假设通货膨胀率为每年2%，目前家庭月均消费2350元，李先生夫妇工作到60岁退休，则李先生家庭退休第一年的预期年开支为()元。
A. 48542
B. 52102
C. 56314
D. 70531
关于不同家庭生命周期的理财重点，下列描述正确的是()。
A. 家庭形成期的资产不多但流动性需求大，应以存款为主要配置
B. 家庭成长期的信贷运用多以信用卡和小额信贷为主
C. 家庭成熟期的信托安排以购房置产信托为主
D. 家庭衰老期的核心配置应以债券为主
It can be inferred from the passage that which of the following would most probably be observed during the Earth’s passage through a meteor stream if the conventional theories mentioned in line 18 were______
A. Meteor activity would gradually increase to a single, intense peak, and then gradually decline.
B. Meteor activity would be steady throughout the period of the meteor shower.
C. Meteor activity would rise to a peak at the beginning and at the end of the meteor shower.
D. Random bursts of very high meteor activity would be interspersed with periods of very little activity.
E. In years in which the Earth passed through only the outer areas of a meteor stream, meteor activity would be absent.
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