题干

健康是人生最宝贵的财富之一,内环境稳态的维持与人体健康有密切的关系.如图是人体某组织结构示意图,请据图回答:(在“[]”中写数字,在“”上写名称.4表示细胞,1、2、3表示三种细胞外液,A、B表示液体流动方向.)

(1)图中4细胞生活的液体环境是[____ ]____ ,血浆中的氧进入组织细胞的途径是____ (用数字和箭头表示).3与2相比,成分中明显少的物质是____ .

(2)1﹣4中,CO2浓度最高的是[____ ],2与3进行物质交换需经过的结构是____ ,1的是[____  ].

(3)过度疲劳时,代谢产物的大量积累导致[____  ]渗透压升高,可能出现____现象.

(4)若此图表示胰腺局部组织,则机体处于饥饿状态时,胰高血糖素含量会____ .

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答案(点此获取答案解析)

3,组织液,2→3→4,蛋白质,4,毛细血管壁,3,3,组织水肿(水肿),增加

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    Recently, American President Trump announced his budget. One of the budgets would cut all funding to the Institute of Museum and Library services and libraries across the United States. However, as far as I'm concerned, we need to save our libraries.

    Libraries provide books and after-school programs for children. They encourage literacy (识字)with summer programs. They help inspire a life-time love of learning and reading in children of all ages. Without them, where will kids with no Internet at home do their homework? Where will kids have a place to study or borrow books after school? Therefore, we need libraries for our kids. We need them so that kids can grow up with a place, other than school, where learning and exploration is encouraged. For adults, libraries serve as a place where they can use the Internet to apply for jobs, get job training, early voting centers as well as book clubs to help make new friends. It can also serve as a place to pick up a book and learn something new. What's more,they can also borrow a book and get away from it all.

    Libraries save our information for the next generation. When we live in an age of alternative (选择性的)facts, where science is ignored in favor of personal feelings, we need libraries now more than ever. We need them to educate ourselves on the facts and hold the government responsible for them. We need them to have strong public participation(参与).

    If you agree with me,you shouldn't be silent on this issue. You can write or call directly to tell the president to save our libraries. You can also write to both your state Senators (参议员)and your district representative. If you do not know who they are, you can find out here. Let them know this is a beneficial issue because all people use public libraries in their daily life.