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【单选题】
细菌摄取蛋白胨主要是满足对那种营养物质的需要;A.
含氮化合物
B.
无机盐类
C.
生长因子
D.
水
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【简答题】数控程序的编制方法一般有( )和( )两种,常用的自动编程软件有:( )、PROE、PowerMill、CAM 、CAXA等。
【单选题】根据以下材料，回答题 A Country's Standard of Living The 'standard of living' of any country means the average person's share of the goods and services the country produces. A country's standard of living， there...
A.
calls
B.
gets
C.
depends
D.
takes
【单选题】根据短文回答 51～65 题。 A Country's Standard of Living The'standard of living' of any country means the average person' share of the goods and service.s the country produces.A country's smartcard of living,__...
A.
however
B.
furthermore
C.
similarly
D.
therefore
【简答题】编程方法有( )、自动编程两种方法。
【单选题】请根据短文内容，回答题。 A Country"s Standard of LivingThe "standard of living&quo
A.
请根据短文内容，回答题。 A Country"s Standard of Living The "standard of living" of any country means the average person&39;s share of the goods and services the country produces. A country&39;s standard of living, therefore __________ (51) ftrst on its capacity to produce wealth. "Wealth" in this __________ (52) is not money, for we do not live on money but on things that money can buy: "goods" such as food and clothing, and "services" such as transport and entertainment. A country&39;s capacity to __________ (53) wealth depends upon many factors, most of __________ (54)have an effect on one another. Wealth depends __________ (55) a great extent upon a country&39;s natural resources. Some regions of the world are well supplied with coal and minerals, and have fertile (肥沃的) soil and a favorable climate; other regions __________ (56) none of them. Next to natural resources comes the ability to __________ (57) them to use. China is perhaps as rich as the USA in natural resources, but suffered for many years __________ (58) civil and extemal wars. And for this and other__________ (59) was unable to develop her resources. Sound and stable political conditions and __________ (60) from foreign invasions enable a country to develop its natural resources peacefully and steadily, and to produce more __________ (61) than another country equally well favored by nature but less well ordered. A country&39;s standard of living does not only depend upon the wealth that is produced and__________ (62) within its own borders, but also upon what is directly produced through international trade. For example, Britain&39;s wealth in food stuffs and other agricultural__________(63) would be much less if she had to depend only on those grown at home. Trade makes it possible for her surplus ( 过剩的) manufactured goods to be traded abroad for the agricultural products__________ (64) would otherwise be lacking. A country&39;s wealth is, therefore, much influenced by its manufacturing capacity,__________ (65) that other countries can be found ready to accept its manufactures. _________ 查看材料 A.calls
B.
gets
C.
depends
D.
takes
【单选题】根据短文内容，回答题。 A Country&39;s Standard of Living The "standard of living" of any country means the average person&39;s share of the goods and services the country produces. A country&39;s standard of liv...
A.
however
B.
furthermore
C.
similarly
D.
therefore
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