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软骨组织是半固态的结缔组织，根据包埋纤维种类的不同，软骨可分为（）。骨组织是由骨的细胞和细胞间质构成，骨的细胞包括（ ） 。

答案

参考答案：透明软骨 纤维软骨 弹性软骨，骨原细胞 成骨细胞 骨细胞 破骨细胞。

单项选择题

甲因涉嫌贩毒被公安机关依法立案侦查，下列选项不正确的有（）。

A、犯罪嫌疑人甲在第一次被讯问后或采取强制措施之日起，可以委托辩护人

B、犯罪嫌疑人甲若要求委托辩护人，只能由自己委托

C、如果犯罪嫌疑人甲在被拘留或逮捕后提出聘请律师，看守所应当及时将其请求转达办理案件的侦查机关，侦查机关应当及时向其所委托的人员或者所在的律师事务所转达该项请求

D、在押犯罪嫌疑人甲仅有聘请律师的要求，但提不出具体对象的，侦查机关应当及时
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The central problem of economics is to satisfy the people’s and nation’s wants. The problem we are faced with is that our (1) , here identified as money, are (2) . The only way we can resolve our (3) is to make choices. After looking at our resources, we must examine our list of (4) and identify the things we need (5) , those we can postpone, and (6) we cannot afford. As individuals, we face the central problem involved in economics — deciding just how to allocate our limited resources to provide ourselves with the greatest (7) of our wants.
Nations face the same problem. As a country’s population (8) , the need for more goods and services grows (9) . Resources necessary to production may increase, but there are (10) enough resources to satisfy the total desires of a (11) . Whether the budget meeting is taking place in the family living-room, in the conference room of the corporation (12) of directors, or in the chamber of the House of Representatives in Washington, the basic problem still exists. We need to find (13) of allocating limited resources in order to satisfy unlimited wants.
A short time ago, economists divided goods into two categories, free and economic. The former, like air and water, were in (14) abundance that economists had no concern about (15) of scarcity and what to do about it. Today many of these "free goods" are in (16) very expensive to use. Pollution has made clean air and water expensive for producers who have to filter their waste products, for consumers who ultimately pay for the producers’ extra costs, and (17) tax-payers who pay for the government’s involvement in cleaning the environment.
In the 1990s, almost all goods are (18) . Only by effort and money can they be (19) in the form people wish.
Meeting the needs of people and the demands from resources available leads to the basic activity of production. In trying to (20) unlimited wants from limited economic goods, production leads to new problems in economics.
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