单项选择题

According to the selection more than half of a person's body is composed of()

A．voluntary muscles
B．involuntary muscles
C．muscle fibers
D．sensory nerves

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相关考题

单项选择题

Muscles are unique fibers, because they can ()

A．contract
B．stretch
C．retract
D．do all of the above

单项选择题

The writer of the article is()

A．Mrs. White's niece
B．the Whites' cousin
C．Sarah' s friend at college
D．Jane' s friend at school

单项选择题

In what way did the writer find the White family completely different from her own()

A．Her parents were not as loving as the Whites.
B．Hers were very strict parents while the Whites were too kind.
C．When something went wrong the Whites didn' t blame their children for it.
D．When aomething had happened, her parents wanted the children to learn a lesson.