下列物质中,属于金属材料的是( ) A.钢 B.铜 C.氧化铁 D.赤铁矿

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问题:

下列物质中,属于金属材料的是(  )

A.钢

B.铜

C.氧化铁

D.赤铁矿

考点:金属材料
题型:多选题

He made ________ known to his friends that he didn’t want to enter politics.

A.that

B.it

C.himself

D.him

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正常胸部CT,一般升主动脉与降主动脉横径比为()

A.1:1

B.2:1

C.2.5:1

D.1.5:1

E.0.5:1

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患儿,男,6岁,因家长发现其左耳听力突然下降3天而就诊。伴随有发作性头晕,行走不稳,恶心、呕吐。发病以来无耳痛、耳漏或耳闷,无头痛、发热,在外院行消炎输液无效。就诊时头晕及行走不稳已缓解。耳镜检查双侧外耳道通畅,鼓膜完整无充血,稍内陷。纯音测听示左耳极重度感音神经性聋。

进一步追问病史发现,患儿听力下降前一周有发热及左侧耳垂周围区域轻度肿痛,自行消炎治疗后上述症状消失,余既往史无阳性发现。初步诊断考虑为(左)突发性耳聋:感染性聋。其最常见的致病病原体为()。

A.风疹病毒

B.麻疹病毒

C.带状疱疹病毒

D.腮腺炎病毒

E.腺病毒

F.柯萨奇病毒

题型:多选题

量值溯源等级图又称为( )。

A.量值溯源分类表

B.量值溯源关系表

C.量值溯源顺序表

D.量值溯源体系表

题型:多选题

A variety of illegal acts committed by people in the course of their employment, for their own personal gain, are collectively known as white-collar crime. Embezzlement, theft and trading securities (1) insider information are common forms of white-collar crime. The majority of cases involve low-level employees who steal because they are under (2) financial stress. Many plan to (3) the money back as soon as possible but may never do so. Their crimes are usually never (4) because the amounts of money are small, and no one notices the (5) .

(6) , there are some very large cases of white-collar crime, such as multimillion-dollar stock market or banking seams that take years to discover and are extremely difficult and expensive to (7) .

White-collar crime is not (8) to the business sector. Government employment, especially (9) the city level, also provides opportunities to (10) one’s pockets. (11) , building inspectors accept bribes and full-time employees receive (12) payments.

Although white-collar crime is less (13) than street crime, it involves (14) more money and harm to the public than crimes committed by street criminals. It is (15) that there are more criminals (16) the office suites than in the streets, yet the (17) of white-collar makes it difficult to uncover the offenses and pursue the offenders. As the economy (18) from manufacturing to services and electronic commerce, opportunities for white-collar crime (19) , while the technology needed to stop such crimes will (20) .

17()

A.nature

B.feature

C.property

D.essence

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