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问题 选择题

花的结构中，最主要的部分是(    )。

A．雄蕊和雌蕊

B．花瓣和雌蕊

C．花萼和花瓣

D．花萼和雄蕊

答案

答案：A

本题考查花的结构．一朵完整花的结构：①花药（内有花粉）、②花丝、③花瓣（组成花冠）、④萼片（组成花萼）、⑤柱头、⑥花柱、⑦花柄⑧子房（将来发育成果实）⑨花托，①②合称雄蕊⑤⑥⑧合称雌蕊．

解：植物要想结出果实与种子首先必须进行的两个生理过程为：传粉与受精．而发育情况为，可见与果实和种子的形成有直接关系且是一朵花的最主要的部分是雄蕊和雌蕊．

故选：A

一朵花的最主要的部分是雄蕊和雌蕊因为其与果实和种子的形成有直接关系．

填空题



For more than two centuries, American’s colleges and universities have been the backbone of the country’s progress. They have educated the technical, managerial, (1) and provided generation after generation of national leaders. Today educators from around the globe are turning to U. S. institutions of higher learning (2) . They are apt to find many reasons for the excellence of American universities, but (3) stand out as watersheds:
Education (4) : In 1862 Congress enacted the Land-Grant College Act, which essentially extended the opportunity of higher education (5) , including such disenfranchised groups as women and minorities. Each state was permitted to sell large tracts of (6) and use the proceeds to endow at least one public college.
(7) : Over the years, the decentralization and diversity of the America’s colleges and universities have promoted competition for students and resources. Competitive pressure first arose (8) . The academy’s impact really grew after World War II, when (9) commissioned by President Roosevelt argued that it was the federal government’s responsibility to (10) for basic research. Instead of being centralized in government laboratories, scientific research (11) in American universities and generated increasing investment. It also gave graduate students research opportunities and helped (12) far and wide, to the benefit of industry, medicine and society as a whole.
(13) : The end of the World War II saw passage of the Servicemen’s Readjustment Act of 1944. The law, which provided for (14) for returning veterans, made an already democratic higher-education system accessible in ways that were (15) in Europe, opening the doors of the best universities to men and women who had (16) of going to college.
(17) : The creation of federal loan guarantees and subsidy programs, as well as outright grants for college students brought (18) to higher education and further helped to democratize access. Since its founding (19) , the Federal Family Education Loan Program has funded more than 74 million student loans worth more than (20) .
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单项选择题

男，65岁，突然出现剧烈头痛伴呕吐6h，无发热，否认高血压病史。体检神志清，体温36.9℃，血压125/75mmHg，右侧瞳孔直径3.5mm，对光反应消失，上睑下垂，眼球上下及内侧运动不能，颈项强直，Kernig征阳性，CT提示脑正中裂及右大脑外侧裂、枕大池高密度影，该患者受累的脑神经是（）

A.右侧滑车神经

B.右侧三叉神经

C.右侧动眼神经

D.右侧展神经

E.右侧面神经
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