影响舵效的主要因素是()①舵角大小;②流经舵面的流速;③船的转动惯性及纵横倾;④风流

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问题:

影响舵效的主要因素是()

①舵角大小;

②流经舵面的流速;

③船的转动惯性及纵横倾;

④风流、浅水等海况;

⑤舵机的性能。

A.①~④

B.②~⑤

C.①③④⑤

D.①~⑤

考点:船舶结构与货运舵设备舵设备题库
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下列各项,不属于太阴病证临床表现的是().

A.口苦

B.食不下

C.四肢不温

D.腹满而吐

E.时腹自痛

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国家商检部门、商检机构工作人员泄露所知悉的商业秘密的,依法给予( )。

A.警告

B.行政处罚

C.行政处分

D.辞退

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患者发热、身黄、小便短赤,纳差、腹满、舌红、苔黄腻、脉弦数,宜用()。

A.栀子柏皮汤

B.茵陈蒿汤

C.麻黄连轺赤小豆汤

D.五苓散

E.以上都不宜选用

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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) .

题型:单项选择题

当铁口发生连续过浅事故时,铁口上方的风口应()。

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