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问题 单项选择题

压缩性骨折，最常发生于

A．肱骨头

B．股骨头

C．椎体

D．腕舟骨折

E．足舟骨折

答案

参考答案：C

解析：[解题思路] 由于脊椎生理弯曲的存在，当有垂直暴力存在时，在弯曲部位应力最大，通过椎间盘引起椎体压缩。

单项选择题

保险产品定价需要遵循基本的原则，其中（）是指保险费率必须足以支付未来的预期理赔成本。

A.竞争力原则

B.公平性原则

C.合规性原则

D.充足性原则
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填空题



As always, I am pleased to be here at the National Press Club for my (1) Speech. This is the seventh time I have had the (2) to give this speech, and over the years I have talked about a wide range of issues: (3) , reading, setting high expectations, improving the teaching profession, and (4) the American high school -- to name just a few.
I have just returned from a five-day, (5) tour of schools in rural America. We started in Monroe, Louisiana, and finished (6) later in Paducah, Kentucky. What I noticed most about the trip was the weather. Every time I (7) my Success Express School Bus, the local people who came to greet me (8) that the record for (9) had just been broken in their community. In each place, the temperature was always between (10) degrees.
Now, I have very good people on my staff. But the next time we plan a (11) , I’m going to have a (12) on my staff. I took this bus trip through rural America to make an important point that the (13) of children in our nation’s small towns cannot be ignored. Twenty-five percent of all our school children live in (14) all over America.
When it comes to our children, let’s always remember that children everywhere have (15) and (16) . Yet, schools in small towns too often have to (17) because of limited resources and a (18) . On my trip I put a p focus on the issues that matter in rural America, with a particular emphasis on (19) schools, reducing class size, and overcoming the (20) .
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