Playing organized sports is such a common experience in the United States that many children and teenagers take them for granted. This is especially true (1) children from families and communities that have the resources needed to organize and (2) sports programs and make sure that there is easy (3) to participation opportunities. Children in low- income families and poor communities are (4) likely to take organized youth sports for granted because they often (5) the resources needed to pay for participation (6) , equipment, and transportation to practices and games (7) their communities do not have resources to build and (8) sports fields and facilities.
Organized youth sports (9) appeared during the early 20th century in the United States and other wealthy nations. They were originally developed (10) some educators and developmental experts (11) that the behavior and character of children were (12) influenced by their social surroundings and everyday experiences. This (
A. maintain
B. sustain
C. contain
D. entertain
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Earth’s Waters{{/B}} It is hard to get people to think of sharks as anything but a deadly enemy. They are thought to {{U}} (51) {{/U}} people frequently. Although these fish perform a valuable {{U}} (52) {{/U}} for earth’s waters and for human beings. Yet business and sport fishing are threatening their {{U}} (53) {{/U}}. As a result, some sharks are at risk of disappearing from Earth. Warm weather may influence both fish and shark {{U}} (54) {{/U}}. Many fish swim near coastal areas because of their {{U}} (55) {{/U}} waters. Experts say sharks may follow the fish into the same areas, {{U}} (56) {{/U}} people also swim. In fact,most sharks do not purposely charge at or bite humans. They are thought to mistake a person {{U}} (57) { A. research B. experiment C. analysis D. service [判断题]RE2B型轮对只能装用352226X2-2RZ型轴承。( )
A.正确 B.错误 我来回答: 提交
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