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问题 填空题

某同学用如图所示的装置，研究物块受到液体的浮力。弹簧测力计吊着物块在空气中称时，读数为3N；当把物块浸没在水中称时，读数为2.5N，此时物块受的浮力为_________N，金属块的体积是_________m3。金属块的密度是_________kg/m3。

答案

0.5，5×10-5，6×103

听力题

根据短文内容和首字母提示，填写所缺单词。

The development of the English language took a giant step in 1607. Three small British ships c【小题1】 the Atlantic Ocean. They began to call areas of their new land by words borrowed from the native people. For example, many of the great r【小题2】 in the United States are taken from American Indian words. The Mississippi, the Tennessee, the Missouri are examples. This borrowing or adding of foreign words to English was a w【小题3】of expanding（扩大）the language. The names of three days of the week are good examples of this. The people from Northern Europe honored three gods with a special day each week. The gods were Odin, Thor and Freya. Odin’s-day became Wednesday in English, Thor’s-day became T【小题4】 and Freya’s-day became Friday.

Experts cannot explain many English words. For h【小题5】 of years, a dog was called a “hound.” The word is still u【小题6】 but not as commonly as the word “dog.” English speakers just started using it. Other words whose origins are unknown i【小题7】“fun,” “bad,” and “big.”

English speakers also continue to invent n【小题8】 words by linking old words together. A good example is the words “motor” and “hotel.” Many years ago

s【小题9】 linked them together into the word “motel.” A motel is a small hotel near a road where people travelling in cars can stay for the night.

Other words come from the f【小题10】 letters of names of groups or devices. For example, the North Atlantic Treaty Organization is usually called NATO.
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问答题 简答题

机关事业单位工人与企业工人的劳动目的有什么区别？
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