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有形资产负债率应为()。
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某公司2003年12月31日的资产负债表见下表，该公司的全部账户都在表中。
①年末流动比率为2：②产权比率为0.6；⑧以销货成本和年末存货计算的存货周转率为10次；④本年毛利(销售收入减去销售成本)为40000元。
表中应付账款的金额为()元。
2003年12月某晚，被告人肖某驾驶微型车载着被告人谢某和巫某从福建省清流县某镇开到该县交通局设在某岔路口的收费站上，收费站工作人员李红英让其交费，被告人肖某对谢某说“要交费”，被告人谢某叫道“本地的车怎么也要交费”，坐在后座的巫某即下车抬栏杆，收费站人员林某上前制止，双方发生争吵，被告人谢某便一脚踢到林某小腹，林某被踢到后即朝收费站办公室方向跑，被告人谢某迫打林某。巫某强行把栏杆抬起，叫被告人肖某把车开过去，巫某也追上去参与打林某，收费站工作人员李国富等7人闻息前来劝阻。被告人谢某、巫某又与其他收费站工
Plants and Mankind
Botany, the study of plants, occupies a peculiar position in the history of human knowledge. We don't know what our Stone Age ancestors knew about plants, but from what we can observe of preindustrial societies that still exist, a detailed learning of plants and their properties must be extremely ancient. They have always been enormously important to the welfare of people, not only for food, but also for clothing, weapons, tools, dyes, medicines, shelter, and many other purposes. Tribes living today in the jungle of the Amazon recognize hundreds of plants and know many properties of each. To them botany has no name and is probably not even recognized as a special branch of "knowledge" at all.
Unfortunately, the more industrialized we become the farther away we move from direct contact with plants. And the less distinct our knowledge of botany grows. Yet everyone comes unconsciously on an amazing amount of botanical knowledge, and few people will fail to recognize a rose, an apple, or an orchid. When our Neolithic ancestors, living in the Middle East about 10,000 years ago, discovered that certain grasses could be harvested and their seeds planted for richer yields the next season, the first great step in a new association of plants and humans was taken. Grains were discovered and from them flowed the marvel of agriculture: cultivated crops. From then on, humans would increasingly take their living from the controlled production of a few plants, rather than getting a little here and a little there from many varieties that grew wild and the accumulated knowledge of tens of thousands of years of experience and intimacy with plants in the wild would begin to fade away.
botany植物学
marvel令人惊奇的事(人)，奇迹
It is logical that a detailed learning of plants and their properties must be extremely ancient.
If the salinity(含盐量) of ocean waters is analyzed, it is round to vary only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic salinity. One of these is the subtraction of water from the ocean by means of evaporation—conversion of liquid water to water vapor. In this manner, the salinity is increased, since the sales stay behind. If this is carried to the extreme, of course, white crystals of salt would be left behind; this, by the way, is how much of the table salt we use is actually obtained.
The opposite of evaporation is precipitation, such as rain, by which water is added to the ocean. Here the ocean is being diluted so that the salinity is decreased. This may occur in areas of high rainfall or in coastal regions where rivers flow into the ocean. Thus salinity may be increased by the subtraction of water by evaporation, or decreased by the addition of fresh water by precipitation or runoff.
Normally, in tropical regions where the sun is very strong, the ocean salinity is somewhat higher than it is in other parts of the world where there is not as much evaporation. Similarly, in coastal regions where rivers dilute the sea, salinity is somewhat lower than in other oceanic areas.
A third process by which salinity may be altered is associated with the formation and melting of sea ice. When seawater is frozen, the dissolved materials are left behind. In this manner, seawater directly beneath freshly formed sea ice has a higher salinity than it did before the ice appeared. Of course, when this ice melts, it will tend to decrease the salinity of the surrounding water.
In the Weddell Sea, off Antarctica, the densest water in the oceans is formed as a result of this freezing process, which increases the salinity of cold water. This heavy water sinks and is found in the deeper portions of the oceans of the world.
What does the passage mainly discuss？
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