[单选题]硬岩是指岩石抗压极限强度大于( )。-我要搜题网

The concern throughout the world in 1988 for those three whales that were locked in the Arctic ice was dramatic proof that whales, several species of which face extinction, have become subjects of considerable sympathy.
These are the recorded voices of whales. These monstrous creatures have been trumpeting their songs, one to another, in the world’s oceans since the dawn of time, while overhead, great empires and civilizations have come and gone. Now, their time of decline has come. It began a long time ago.
Four-thousand-year-old rock carvings show that the people who lived in what is now Norway were probably the first to seek out and kill whales in the sea. By around 890 AD, 3,000 years later, the practice had spread to the Basque people of France and Spain, who hunted whales from boats in the Bay of Biscay. In the centuries that followed, whaling became an important industry in Denmark, England, Germany, the Netherlands, and, finally, in what would become
A. Danmark.
B. Norway.
C. Netherlands.
D. Iceland.

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[单选题]( )属于消防安全领域一般失信行为。
A.社会单位(场所)存在火灾隐患或者消防安全违法行为经消防救援机构通知后,逾期仍不整改的
B.公众聚集场所在投入使用、营业前未经消防安全检查合格的
C.公众聚集场所在投入使用、营业前未按规定做出消防安全承诺以及虚假承诺,且存在重大火灾隐患的
D.会单位(场所)或个人擅自拆封或者使用被消防救援机构临时查封场所、部位的

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[单选题]直流电压表、电流表应采用精度不低于（）级的表计，如果采用数字显示表，应采用精度不低于0.1级的表计。
A.0.5
B.1
C.1.5

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[单项选择] In the name of "zero tolerance," our schools are treating innocent children like criminals. "Zero Tolerance" In High Schools On a chilly December morning in Houston, Eddie Evans’’s 12-year-old son hurried out the door in shirt sleeves on his way to the bus stop. Feeling the cold, he ducked back into his house to quickly grab a jacket. It wasn’’t until he’’d gotten inside the school building that he remembered his three-inch pocketknife was still in his coat. Why would a sixth-grader carry a knife Because he was a Boy Scout and he’’d brought it to his last Scout meeting. After asking a friend what he should do, the boy decided to keep quiet and hide the knife in his locker until the end of the day. But his friend mentioned the knife to a teacher, and school officials called the police. That afternoon, cops arrested the Evans child and took him to a juvenile detention center. "From that point on, my family’’s life was flipped on its head," the boy’’s father says.
A. The five-year-old boy in the sexual harassment case was innocent.
B. The school punished the five-year-old boy for sexual harassment so that’’ he would receive a serious lesson.
C. The zero tolerance policies are necessary in guiding teenage behaviors.
D. Although suspending students are under zero tolerance rules they might as well end up in committing crimes.

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[单选题]146,防火门应为平开门，其开启方向必须为。
A.朝右
B.朝左
C.水平
D.疏散方向

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[单选题]硬岩是指岩石抗压极限强度大于( )。
A. 50MPa
B. 55 MPa
C. 60MPa
D. 70MPa

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[单选题]硬岩是指岩石抗压极限强度大于( )。A. 50MPaB. 55 MPaC. 60MPaD. 70MPa

热门试题:

[单选题]硬岩是指岩石抗压极限强度大于( )。
A. 50MPa
B. 55 MPa
C. 60MPa
D. 70MPa