单项选择题

To secure safety, Mr. Teitelbaum does all of the following EXCEPT that ______.

A．he will climb with a partner so long as he can find one
B．he carries a cell phone
C．he does a three-point check
D．he took a $400 course for tree-climbing

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热门试题

单项选择题

In their efforts to define the alcoholic personality , some scientists ______.

A．have identified typical alcoholics
B．have identified preoccupation with self as a cause of alcoholism
C．have found that alcoholics have some characteristics in common
D．have produced an accurate description of a typical alcoholic

单项选择题

Which of the following causes of alcoholism are not discussed in the passage

A．Social causes.
B．Psychological causes.
C．Financial causes.
D．Physical causes.