生物圈是厚度为_____千米左右的圈层,包括______________、___

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问题:

生物圈是厚度为_____千米左右的圈层,包括______________、______________、_____________

考点:生物圈的概念和范围
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如图所示,开关S闭合后,电路正常工作,电压表有一定的示数。一段时间后,电压表的示数突然变为零,则故障可能是R1_______或R2_______。(填“短路”或“断路”)

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A Recent Erymology of the Word "Culture"“文化”一词的新词源
Look in an old dictionary—say, a pre-1960 Webster’s—and you’ll likely find a definition of culture (1) looks something like this: "1.The cultivation of soil. 2.The raising, improvement, or development of some plant, animal (2) product. " This use of the word has its roots in the ancient Latin word cultura, "cultivation" or "tending," and (3) entrance into the English language had begun by the year 1430. By the time the Webster’s definition above was (4) , another definition had begun to take precedence over the old Latin denotation; culture was coming to mean "the training, (5) , and refinement of mind, tastes, and manners" (Oxford English Dictionary). The OED traces this definition, which today we associate (6) the phrase "high culture," back as far as 1805; by the middle of the 20th century, it was (7) becoming the word’s primary definition.
However, if you try a more modem source, like the American Heritage English Dictionary, (8) find a primary definition of culture which is substantially different than either of the two given above: "The totality (9) socially transmitted behavior patterns, arts, beliefs, institutions, and all other products of human work and thought. " Why such a (10) , and in such a (relatively) short period of time Well, in the past 40 years, the use of the (11) "culture" has been heavily influenced by the academic fields of sociology and cultural anthropology. These fields have gradually brought (12) was once a minor definition of culture (the last of eight definitions given in the old 1958 Webster’s quoted (13) ) into the mainstream.
It is easy to imagine how the US society which was so focused on "socially transmitted (14) patterns" in the sixties would come to need a word to describe the object of its interest. The civil (15) movement during this era brought everyone’s attention to bear on cultural differences within US society, while the Vietnam War (16) to emphasize the position of the US culture in relation to other world cultures.
Over time, these new uses (17) the word culture have eclipsed its older meanings, those associated with cultivation of the land and the production of (18) . You might say that an aspect of US culture over the past 40 years is its fascination with the (19) of culture itself—a fascination which has brought about many changes in the way we speak and the (20) of words which we commonly use.

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小癌型原发性肝癌是指()

A.单个癌肿结节直径<3cm

B.或相邻两个癌结节直径之和<3cm

C.患者无症状,但血清AFP阳性

D.肿瘤切除后AFP可降至正常

E.以上均不是

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保证合同的合同主体是( )。

A.保证人和债务人

B.保证人和债权人

C.债权人和债务人

D.以上都不对

题型:读图填空题

物体移近双眼前时,眼球随之内转,且越近内转越大,称为( )。

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