单项选择题

What provides autos with electric power in an automated highway system

A．A rail.
B．An engine.
C．A retractable arm.
D．A computer controller.
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单项选择题
The newest state in the United States is______.
A．New Mexico
B．Alaska
C．California
D．Hawaii
单项选择题
Chaucer bore marks of ______ and thus is regarded as the forerunner of English Renaissance.
A．Neo-Classicism
B．Transcendentalism
C．Humanism
D．Sentimentalism
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