单项选择题

A．They reduce a person’s appetite.
B．They make a person less persistent in face of trouble.
C．They make a person’s nervous system weak.
D．They make a person more vulnerable to disease.
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单项选择题
A．Childhood in his native home, Texas.B．Working as congressional secretary in Washington.C．Vacationing at his ranch in Texas.D．Presidency in the White House.
A．Childhood in his native home, Texas.
B．Working as congressional secretary in Washington.
C．Vacationing at his ranch in Texas.
D．Presidency in the White House.
单项选择题
A．Walk down the Royal Mile.B．Visit Holyrood Palace.C．Visit the Castle.D．Pay a visit to the Queen.
A．Walk down the Royal Mile.
B．Visit Holyrood Palace.
C．Visit the Castle.
D．Pay a visit to the Queen.
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