主页
学科
搜索
账户
常见问题
当前学科：磨工技师
题目：
问答题
短三瓦动压轴承在结构上和使用上有何特点？试叙述其装配要点。
答案：
<查看本题扣1积分>
查看答案
答案不对？请尝试站内搜索
推荐知识点:
电感两端的电压相位较流过电感电流的相位（）。
Perhaps no single monument in the USA is as famous as the Statue of Liberty. Standing on a small island in New York Harbor, the crowned lady, holding aloft(在高处)in her right hand the torch of freedom and in her left hand a tablet which is inscribed(雕刻)"July 4th, 1776", is a symbol of American democracy. She is colossal. She is 151 foot high and the pedestal(基座)on which she stands is almost as much. An elevator takes visitors to the top of the pedestal, around which a balcony runs. A spiral(螺旋形)staircase goes up to the crown, and another to the torch. The Statue of Liberty was a gift to the USA from France in 1886, as a mark of friendship and also in memory of the aid France gave the Americans during the American Revolution. For millions of immigrants, the Statue was their first sight of the promised Land, and for a few it was also the last, as they sailed back home again. About a mile from Liberty Island, there is another small island, called Ellis Island, which was looked up on with dread by the immigrants. For it was here that they had to wait their turn to be examined by doctors and officials. Most of the immigrants could not speak a word of English. But only two out of 100 immigrants were refused admission to New York City. Often the person refused turned out to be a grandmother or a weary, frightened girl mistakenly labeled "feebleminded. " Sometimes husbands and wives were parted because one of them happened to have a bad cough and was suspected of having tuberculosis(肺结核). New York City was a bitter disillusionment to some immigrants. Far from being a city paved with gold, it was a city teeming(充满)with overcrowded, unhealthy and unsafe ghettos. The immigrants looked for earlier immigrants of their own national or religion. So Italian, Polish, Irish, Jewish neighborhoods grew up. Because they could not speak English, the newcomers found it difficult to get work at once, and their living quarters were often slums. However, they found in the USA opportunities of bettering themselves. Today immigrants no longer have to endure the indignities(侮辱)of Ellis Island. The grim buildings were closed down in 1924. In 1976, Ellis Island became an historic monument.Which of the following is the best title for this passage? ______A．Gateway to the USA.B．Statue of Liberty.C．Ellis Island.D．Immigrants of the USA.
女性，35岁。肥胖，紫纹（-），血浆皮质醇552nmol／L（20μｇ／dl），（正常值6～16μｇ／dl），为厂明确诊断应首选下列哪项检查（）
同业存款提前支取，提前支取部分按不超过哪项利率水平计结息？（）
在下列影响人际沟通的个人因素中，不属于心理因素的是（）。
教学环境不是学习与教学的五大要素之一。
继电器：
在标准状态下，稳定单质的下列值中为零的是
For Krashen, what distinguishes language acquisition from language learning ?
盲人没有视觉，但是听觉和触觉特别灵敏，这属于感觉的哪种特性？（）