《中 * * 关于全面深化改革若干重大问题的决定》指出，要深化改革，迫切需要强化“六种意

运输业是一种以( )运输工具服务于他人而收取报酬的服务性行业。

A．持有

B．租赁

C．代理

D．出售

E．共享

2006年，中国的人均碳排放量跟世界的人均水平相等，但从哪一年开始，我国超过了世界的人均水平？

A、2007年 

B、2008年 

C、2009年 

D、2010年

实验室用密度为1.84g/cm³、溶质质量分数为98%的浓硫酸来配制250mL 1.0mol/l 的稀硫酸，

请回答下列问题：

（1）配制250mL 1.0mol/L的硫酸溶液需浓硫酸______ml．

（2）选用的量筒的规格应是______ml．

（3）配制时，其正确的操作顺序是（用字母表示）______．

A．用30mL水洗涤烧杯2-3次，洗涤液均注入容量瓶，振荡

B．先加入少量水（约70mL）倒入烧杯中，用玻璃棒慢慢搅动再用量筒准确量取所需的一定体积的浓硫酸，缓缓倒入烧杯中，并且不断______（填操作名称），使其混合均匀；

C．将已冷却的硫酸沿玻璃棒注入______中，

D．将容量瓶盖紧，振荡，摇匀；

E．改用胶头滴管加水，使溶液凹面恰好与刻度相切

F．继续往容量瓶内小心加水，直到液面接近刻度1-2cm处

（4）操作A中，将洗涤液都移入容量瓶，其目的是______，溶液注入容量瓶前需恢复到室温，这是因为______．

（5）若出现如下情况，对所配溶液浓度将有何影响（填“偏高”、“偏低”或“无影响”）？若加蒸馏水时不慎超过了刻度线______；若定容时俯视刻度线______，若量取浓硫酸时仰视量筒______．

（6）若实验过程中出现如下情况如何处理？

向容量瓶中转移溶液时（实验步骤②）不慎有液滴掉在容量瓶外面______．

The Ivy League is an athletic conference comprising eight private institutions of higher education in the Northeastern United States. The term is most commonly used to refer to those eight schools considered as a group. The term is also connected with academic excellence, selectivity in admissions, and social elitism(精英主义).

The term became official, especially in sports terminology, after the formation of the NCAA Division I athletic conference in 1954, when much of the nation polarized around favorite college teams. “IV” was used because originally the league consisted only of four members. The use of the phrase is no longer limited to athletics, and now represents an educational philosophy inherent to the nation's oldest schools. In addition, Ivy League schools are often viewed by the public as some of the most prestigious universities worldwide and are often ranked amongst the best universities in the United States and worldwide. The eight institutions are Brown University, Columbia University, Cornell University, Dartmouth College, Harvard University, Princeton University, the University of Pennsylvania, and Yale University.

All of the Ivy League's institutions place near the top in the U.S. News & World Report college and university rankings and rank within the top one percent of the world's academic institutions in terms of financial endowment(捐助). Seven of the eight schools were founded during America's colonial period; the exception is Cornell, which was founded in 1865. Ivy League institutions, therefore, account for seven of the nine Colonial Colleges chartered before the American Revolution. The Ivies are all in the Northeast geographic region of the United States. All eight schools receive millions of dollars in research grants and other subsidies from federal and state government.

Undergraduate enrollments among the Ivy League schools range from about 4,000 to 14,000, making them larger than those of a typical private liberal arts college and smaller than a typical public state university. Ivy League university financial endowments range from Brown's $2.01 billion to Harvard's $26 billion, the largest financial endowment of any academic institution in the world.

71. From the passage, we know the word “Ivy” in “the Ivy League” was first chosen to refer to _______.

A. a plant       B. a number      C. a sport      D. a spirit

72. What is special about Cornell University in the League?

A. It is the oldest one.             B. It was founded by colonists.

C. It has the smallest endowment.   D. It is the youngest one.

73. Which meaning can the term “the Ivy League” convey today?

A. The largest enrollment.         B. The strongest government support.

C. The most expensive schools.       D. First-class education.

74. Which of the following statements is true?

A. There is no longer sports competition in the Ivy League.

B. Seven colleges were set up before the USA was founded.

C. Brown University has the smallest number of students.

D. Typical public state universities are larger than the Ivies.

75. Which of the following can be the best title of the passage?

A. The ABC of “The Ivy League”

B. Best Universities in the USA

C. The Financial Income of American Universities

D. How to Apply to an Ivy League University

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