单项选择题

What is crucial to the future work on the construction site in space

A．The arms.
B．The robot.
C．The robotic arm-to the station.
D．The shuttle.
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单项选择题
The sentence in the ninth paragraph, researchers are not likely to have anything resembling a blood test for a mental illness soon means that_____.
A．mental illness can not be diagnosed by blood test.
B．there is not a definite criterion for mental illness.
C．researchers do not like to use blood test.
D．techniques have gained enough progress but are still not enough for mental illness.
单项选择题
What was the Wen Ho Lee's real or true behaviour probably against the law
A．He stole the "crown jewels" of America's nuclear factory.
B．He had given the data of specific and highly classified details of an American nuclear warhead known as the W-88 to China.
C．He had mishandled national-economy information.
D．He downloaded the equivalent of 400, 000 pages of classified data about the U. S. nuclearweapons program onto an unsecured computer system and then transferred them to high-volume cassettes.
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