[单项选择]The Japanese used to ______ ten million tons of coal each year.


A. extract
B. contract
C. subtract
D. constrain

[单项选择]The Japanese used to ______ ten million tons of coal each year.


A. extract
B. contract
C. subtract
D. constrain

[单项选择]This book will show you （） can be used in other contexts.
A. how you have observed
B. how what you have observed
C. that you have observed
D. how that you have observed

[单选题]The landing weight of a B737 is 50 tons. When it is making circling holding at a 30° slope, its wing lift is _______ tons.
A.50
B.100
C.57
D.65

[单项选择]（　） whales can weigh 40 tons and reach lengths of 50 feet.
A. Fully grown
B. Full grown
C. Grown fully
D. Growing fully

[单项选择]The project required ten years of diligent research.
A. hardworking
B. social
C. basic
D. scientific

[单项选择]Around ten thousand people were left homeless and about two hundred and fifteen killed as a result of the flood.


A. 洪水使得大约1万人无家可归，夺走了215人的生命。
B. 大约1万人失去了家园和215人丧生，这是洪水的结果。
C. 由于洪水，大约1万人不让回家，且有215人死亡。
D. 作为洪水的结果，大约1万人被赶出家门和215人丧生。

[单项选择]In the past ten years skyscrapers have developed ______ in Chicago and New York City.


A. homogeneously
B. simultaneously
C. spontaneously
D. harmoniously

[单项选择]The factory has produced ten thousand color TV sets this year, as ______ eight thousand last year.
A. for
B. to
C. against
D. from

[单项选择]Nine in ten parents said there were significant differences in their approach to educating their children compared with______of their parents.

[单项选择]One day Jim borrowed ten dollars from Bob.

[单项选择]

For nearly ten years,the Unified Modeling Language (UML) has been the industry standard for visualizing,specifying,constructing,and documenting the(1)of a software-intensive system.As the(2)standard modeling language,the UML facilitates communication and reduces confusion among project(3).The recent standardization of UML 2.0 has further extended the language's scope and viability.Its inherent expressiveness allows users to(4)everything from enterprise information systems and distributed Web-based applications to real-time embedded systems. 　　
The UML is not limited to modeling software.In fact,it is expressive enough to model (5)systems,such as workflow in the legal system,the structure and behavior of a patient healthcare system,software engineering in aircraft combat systems,and the design of hardware. 　　
To understand the UML,you need to form a conceptual model of the language,and this requires learning three major elements:the UML's basic building blocks,the
A. model
B. code
C. test
D. modify

[单项选择]In July 1789, ten amendments added to the American constitution limiting the powers of federal government and protecting the rights of all citizens were called


A. Bill of Rights.
B. Civil Rights.
C. Declaration of Independence.
D. Bill of Confederation.

[单项选择]Petroleum, which currently makes up about four-tenths of the world’s energy production, supplies more commercial energy than any another source.

[单项选择]Although he was disabled when he was only ten years of age, yet he aimed （　）, for which his classmates spoke （　） of him.
A. high; high
B. highly; highly
C. highly; high
D. high; highly