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题目：
单选题
A高速增长阶段
B中速增长阶段
C中高速增长阶段
D中低速增长阶段
答案：
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《沥青路面养护质量标准》中规定高速公路的路面车辙深度应（）
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下列选项中能够计算双倍余额递减法折旧额的是()。
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下列骨折中最不稳定的骨折类型是（）。
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脾局限性包膜下积血的CT表现中，哪项不正确（）
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Most people have no idea of the hard work and worry that gointothe collecting of those fascinating birds and animals that they pay to see in the zoo.One of the questions that is always asked of me is 1 I became an animal collector in the first 2.The answer is that I have always been interested in animals and zoos.According to my parents, the first word I was able to say with any 3 was not the conventional “mamma” or “daddy”,4 the word “zoo”, which I would 5 over and over again with a shrill 6 until someone, ingroupsto 7 me up, would take me to the zoo.When I 8 a little older, we lived in Greece and I had a great 9 of pets, ranging from owls to seahorses, and I spent all my spare time 10 the countryside in search of fresh specimens to 11 to my collection of pets.12 on I went for a year to the City Zoo, as a student 13 , to get experience of the large animals, such as lions, bears, bison and ostriches,14 were not easy to keep at home.When I left, I 15 had enough money of my own to be able to 16 my first trip and I have been going 17 ever since then.Though a collector's job is not an easy one and is full of 18 ,it is certainly a job which will appeal 19 all those who love animals and 20. 请在4处填上正确答案（）
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段修时，牵引梁内部磨耗超过2mm焊修或挖补。
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应用拉压正应力公式σ=F/A的条件是（）。
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生产策略
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下列配穴中不属于俞募配穴法的是（）
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已知挠曲线方程W＝q0x（l3-3lx2+2x3）／（48EI），则两端点的约束可能为下列情形中的哪一种：（）