更多“传输带在轮子上的包角不能小于（），否则容易打滑。”相关的问题
乳食积滞腹痛具有以下特点（）
A．发作前有伤食史
B．脘腹胀满疼痛
C．按之腹痛减轻
D．吐后腹痛减轻
E．泻后腹痛减轻
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Rabbits are easy to raise. They are clean and quiet. They don’t need a lot of room. And it costs a s
Rabbits are easy to raise. They are clean and quiet. They don’t need a lot of room. And it costs a small amount of money to feed them, but you can get a big return. One male and two females will produce as many as fifty more rabbits in a year. That is enough to provide enough meat for a family. Rabbit meat is high in protein and low in fat. You don’t have to be a farmer to raise rabbits. You can raise them in the city. Rabbit houses are easy to make with wood and wire. They don’t have to be very big. But each rabbit must have its own little room in the house. This is very important. Each room should be about 75 centimeters wide, 60 centimeters high and one meter deep. Fencing is used for the sides and floor of the rabbit house. The holes in the wire fencing should be about one centimeter square. Waste from the animals will drop through the holes. This keeps the rabbit house clean and dry. Rabbits need a lot of fresh air and sunlight. Cover the sides of the rabbit house only to protect it from rain. Rabbits eat mostly grass and leaves. Hang feeding containers on the outside of the house to let the rabbits eat whenever they want. They simply pull the grass and leaves through the holes in the fence. Each room should have fresh water. The water containers should be heavy so the rabbit cannot turn them over. Or you can tie the containers to the fence. One month after mating(交配), female rabbits give birth to about eight babies. In two months, a baby rabbit should weigh about two kilograms. This is big enough to make a meal for a small family. Rabbits are also valuable for their fur. It takes time, skill and money to prepare the fur and skin for use. If you have only a few rabbits, it probably would be best to let a tanner(制革工) prepare the fur for you. Skill is also needed to remove the fur from the rabbit. But rabbits do not have to be dead to be valuable . Many people enjoy keeping rabbits as friendly pets. And rabbit waste makes an excellent fertilizer(肥料). It can be mixed directly into the soil to improve the growth of vegetables, trees, and flowering plants. 小题1:The text is written mainly_______. A．to explain why rabbits are clean and quiet B．to let people know more about rabbits C．to tell readers how to raise rabbits D．to introduce a small friendly animal pet 小题2:What is important if you raise rabbits? A．Holes are needed for waste to drop through. B．Each rabbit must be given a separate room. C．Each room must have clean water every day. D．Feeding containers are hung on the fence. 小题3:Why should the holes in the wire fence be about one centimeter square? A．Because the holes let in sunlight. B．Because rabbits like these holes. C．Because rabbits get food from them. D．Because waste of rabbits drops through the holes. 小题4:What does the underlined sentence in the last paragraph mean? A．You don’t have to kill rabbits to make more money. B．Rabbits cannot be sold to make money when they are alive. C．Rabbits are more valuable when they are alive. D．Rabbits have to be killed to be more valuable.
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土基上的高级路面相对中级路面而言，道路的结构层中增设了( )。[2014年真题]
A．加强层
B．底基层
C．垫层
D．联结层
E．过渡层
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从国家统计局了解到，2018年，我国将建立以旅游、养老、健康等为主的幸福产业统计监测制度,研究建立反映数字经济、共享经济、现代供应链的统计制度;完善全面建成小康社会指标体系，进而建立起( )体系。2018年，我国将进一步完善国民经济核算体系，通过完善地区生产总值统一核算实施方案，为正式实施地区生产总值统一核算改革奠定基础。
A.现代化统计调查B.新时代统计调查C.全面化统计调查D.新时代现代化统计调查
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采煤技术即采煤方法，包括两项内容即（）。
A.采煤系统
B.采煤设备
C.采煤工序
D.回采工艺
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最近我国在一些小学积极推广使用废旧报纸制作的铅笔，此举的根本目的是( )。
A．减小污染
B．节约木材
C．减轻小学生负担
D．更好的进行素质教育
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清燥救肺汤与桑杏汤方中共有的药物是（）
A.杏仁、桑叶
B.桔梗、枳壳
C.沙参、麦冬
D.杏仁、桔梗
E.杏仁、枇杷叶
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当所装配的元器件上有保护接地点时，应将其接地点接1根横截面积为1.5mm2（），并将其接到柜体牢固的接地点处。
当所装配的元器件上有保护接地点时，应将其接地点接1根横截面积为1.5mm2（），并将其接到柜体牢固的接地点处。
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烧伤后急性呼吸窘迫综合征（ARDS）诊断原则是（）
A . A．氧合指数小于200mmHg
B . B．急性起病
C . C．X线胸片双肺浸润影
D . D．肺动脉楔压(PAWP)小于18mmHg
E . E．临床表现及以上各项综合考虑
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A SONET network typically uses which of the following transmission media?（）
A.Single-mode fiber B.Multimode fiber C.Copper D.Wireless
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信息分析工作中研究方法的科学性主要表现在（）。
A.采用科学的研究方法
B.数据的客观性和结论的准确性
C.研究的相对独立性
D.以上全是
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商业银行的负债项目由（）三大负债组成。
A.存款
B.放款
C.借款
D.存放同业资金
E.结算中占用资金
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由于个人无法预测自己寿命的长短，满期时一次性给付保险金的生存保险已不能为个人养老提供充分的保障，进而产生了（）。
A.万能保险 B.普通寿险 C.分红保险 D.年金保险
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病毒诱导人外周血白细胞产生
A.Α干扰素
B.Β干扰素
C.Γ干扰素
D.IL-1
E.TNF
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施工合同范本中规定可选择的合同计价方式包括（）
A.单价合同
B.固定价格合同
C.可调价格合同
D.总价合同
E.成本加酬金合同
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