It was in the 190s that the American government finally took action to build a national highway system.
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According to the passage, when a person has first lost a job, more often than not, he feels______.
A. excited
B. isolated
C. shocked
D. depressed
Many of the problems presented by the country's geographical features found solutions in innovative engineer projects.
A. Y
B. N
C. NG
Which of the following is an example of inertia?
A boat can stay on water.
B. A plane can fly in the air.
C. You can walk faster on a very smooth surface.
D. You can go forward and backward on a swing.
The Law of Inertia is a law concerning ______
A. motion
B. distance
C. position
D. direction