求60%H2SO4溶液的质量摩尔浓度。

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问题:

求60%H2SO4溶液的质量摩尔浓度。

考点:资格类灰化检修工(中级)灰化检修工(中级)题库
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机动车商业第三者责任险因地区不同可允许一定的费率浮动,如上海、广东、福建、浙江、江苏等省的机动车商业第三者责任险费率在基本险费率的基础上上浮()左右。

A.10%

B.30%

C.25%

D.20%

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The Erie Canal was the first important national waterway built in the US. It crossed New York from Buffalo on Lake Erie Troy to Albany on the Hudson River. It joined the Great Lakes with the Atlantic Ocean. The canal served as a route over which industrial goods could flow into the west, and materials could pour into the east. The Erie Canal helped New York develop into the nation’s largest city.

The building of the canal was paid for entirely by the state of New York. It cost $ 7 143 789, but it soon gained its price many times over. Between 1825, when the canal was opened, and 1882, when toll charges were stopped, the state collected $121 461 891.

For a hundred years before the Erie was built, people had been talking about a canal which could join the Great Lakes and the Atlantic Ocean. The man who planned the Erie Canal and carried the plan through was De Witt Clinton. Those who were against the canal laughingly called it "Clinton’s Ditch". Clinton talked and wrote about the canal and drew up plans for it. He and Governor Morris went to Washington in 1812 to ask for help for the canal, but they were unsuccessful.

Clinton became governor of New York in 1817, and shortly afterwards, on July 4, 1817, broke ground for the canal in Rome, N. Y. The first part of the canal was completed in 1820. As the canal grew, towns along its course developed fast. The length of the canal is 363 miles.

We can see that the Erie Canal ().

A. joined the Great Lakes together

B. crossed New York from north to south

C. played an important part in developing New York City

D. was the first waterway built in the US

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高密度聚乙烯波纹管有何质量要求?

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以下哪些旅客应安排在靠近服务员、方便出入的座位()。

A.病残旅客

B.孕妇

C.犯人

D.无人陪伴儿童

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哪些不是合理的变通方式()

A、求实

B、斗争

C、补偿

D、升华

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