单项选择题

An appropriate title for this selection would be ________.

A．A Peacetime Use of the Atom
B．Atoms and Molecules
C．The Satellite Timekeepers
D．The Role of the Clock
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单项选择题
Captain Kangaroo can't offer ________ to a child.
A．entertainment
B．companionship
C．love and care
D．education
单项选择题
Which of the following is NOT implied in the article
A．Divorced parents can never rear good children.
B．One sixth of the American children live in one-parent families.
C．Two-parent families have better chances of raising their children successfully.
D．Nowadays there are nearly twice as many single-parent families as there used to be in 1950.
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