睾丸附着于鞘膜囊一侧,有液体三面包绕于睾丸周围,此种积液称 A.阴囊鞘膜积液 B.精

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问题:

睾丸附着于鞘膜囊一侧,有液体三面包绕于睾丸周围,此种积液称

A.阴囊鞘膜积液B.精索鞘膜积液C.睾丸鞘膜积液
D.精索、睾丸鞘膜积液E.交通型鞘膜积液

考点:超声波医学主治医师超声医学基础知识超声医学科主治医师
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在长期的营销实践中,涌现了多种形式的契约式分销系统,主要有()。

A.以生产商为核心的自愿连锁销售网络

B.以批发商为核心的自愿连锁销售网络

C.零售商自愿合作销售网络

D.特许经营销售网络

题型:单项选择题

乙炔中的杂质主要有()。

A.磷化氢

B.碳酸钙

C.硫化氢

D.硫化铝

题型:单项选择题

In March 300 college students turned out in Washington to protest against proposed cuts in student loan funds. Another 350,000 collegians flocked to Florida’s sun-drenched beaches during March for "spring break." Since the Florida sun-seekers were more numerous, they were more representative of today’s students than those who protested in Washington, and therefore Congress need not heed the appeals of the protesting students.
The argument above makes which of the following assumptions

A.The students who vacationed in Florida did not oppose the cutting of student loan funds by Congress.

B.The students who vacationed in Florida were not in agreement with the opinion of the majority of United States citizens about the proposed cut in loan funds.

C.The students who protested in Washington were more seriously concerned about their education than were the students who vacationed in Florida.

D.The students who neither protested in Washington in March nor vacationed in Florida in March are indifferent to governmental policies on education.

E.(E) The best way to influence congressional opinion about a political issue is to communicate with one’s elected representative in Washington.

题型:单项选择题

复发性口疮的临床表现,以下哪一项是错误的

A.好发于青少年

B.反复发作口腔黏膜圆形或椭圆形溃疡

C.为多数簇集的针头大小、透明小水疱

D.溃疡面中央稍凹下,周围有狭窄红星

E.病程7~10天,有自限性

题型:单项选择题

垫片密封有哪些分类?

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