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 高等继续教育 / 数字地形测量学


62、为了减少度盘刻划不均匀对水平角的影响，在每一个测回的盘 位置 方向配置度盘。当观测9个测回时，第6个测回度盘的位置为 。
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数字地形测量学
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  • 题干 二、完形填空：阅读下面的短文，选择合适的内容将短文补充完整。  Top 3 Green Home Innovations       回答ABCDE正确获得3.00分中的3.00分.There are many things you can do to reduce carbon emission and help to make the earth a better place for future generations. Here are a few suggestions.       回答ABCDE正确获得3.00分中的3.00分Although LED lamps cost more money than standard incandescent or compact fluorescent bulbs do at the beginning, these long-lasting LED lamps will eventually be worth the money because of nergy saved. LED lamps also produce a cleaner, more natural light.       回答ABCDE正确获得3.00分中的3.00分.“Water”is a hot topic, especially in the Southwest. Household water filters are now available to clean and reuse water from showers and baths. Gray water reuse systems redirect the used water from washing machines to lawns or gardens.       回答ABCDE正确获得3.00分中的3.00分       回答ABCDE正确获得3.00分中的3.00分. Building materials and embellishments like paint and carpets can emit chemical compounds into the atmosphere, and because a home is an enclosed space, those compounds can sometimes accumulate to dangerous levels. Installing a whole-house air purification system is one way to keep indoor air clean and circulating.       Going “green” doesn't have to be a challenge. A home is a long-term investment. You don't have to start over from cratch. Make small changes. Choose environmentally friendly paint or LED bulbs.        Chances are that your home will need improvements eventually.Whenever possible, choose upgrades that will reduce your carbon footprint. It's good for the planet, and it's good for you. A. In recent years indoor air pollution has got a lot of attention. B. Air Purification C. Water Recycling D. In the last decade a growing number of people were interested in conserving energy and preserving the environment by living “green” E. LED Lighting理工英语3
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