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【单选题】
下列关于浓 H 2 SO 4 的叙述中,错误的是A.
常温下可使某些金属钝化
B.
具有脱水性，故能作干燥剂
C.
加热条件下可与木炭反应，其还原产物为 SO 2
D.
溶于水放出大量的热
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【判断题】The main idea of this passage is to introduce Steve Jobs life stories in chronological sequence.
A.
正确
B.
错误
【单选题】If commodity is classified as “labor-intensive” at one set relative factor price but “capital intensive"”at another set of relative factor price, this situation is known as ( )
A.
demand reversal.
B.
factor-intensity reversal.
C.
balance-of-payment reversal.
D.
factor price reversal.
【单选题】The objective of this book is to introduce engineering and science students to the interdisciplinary study of environmental problems: their causes, why they are of concern, and how we can control them...
A.
objective
B.
book
C.
environmental problems
D.
students
【单选题】Which of the following factor is not the determinant of price elasticity of demand
A.
how to classify the necessities and luxuries
B.
the range of the market
C.
demand price
D.
the time horizon
【单选题】The best way to ______ this goal is to introduce new advanced technology.
A.
access
B.
achieve
C.
advantage
D.
adventure
【单选题】The first dynasty in Chinese history was 中国历史上第一个朝代是（ ）。
A.
Xia 夏
B.
Shang 商
C.
Zhou 周
D.
Han 汉
【单选题】According to the factor-price-equalization theorem, free trade equalizes:
A.
Product prices as well as the prices of individual factors of production between two countries.
B.
Product prices between two countries but not the prices of individual factors of production.
C.
Product prices between two countries and factor prices within each country but not between countries.
D.
Product prices and factor prices within each country but not between countries.
相关题目：
【单选题】The first dynasty in Chinese history was 中国历史上第一个朝代是（ ）。
A.
Xia 夏
B.
Shang 商
C.
Zhou 周
D.
Han 汉