单项选择题

Which of the following is NOT the reason for teenagers keeping late hours?
A．Doing school assignments.
B．Enjoying entertainment.
C．Suffering from sleep disorder.
D．Taking up various activities.

A.Doing
B.
B．Enjoying
C.
C．Suffering
D.
D．Taking
E.

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单项选择题

德国吞并奥地利的《关于奥地利和德国重新统一法》签署于（）
A.1935年
B.1936年
C.1937年
D.1938年

A.1935年
B.1936年
C.1937年
D.1938年

单项选择题

Tired children are different from tired adults in that______.
A．the former are more likely to be lacking in energy
B．the latter are more likely to be lacking in energy
C．the former are more likely to have physical problems
D．the latter are more likely to have physical problems

A.
A．the
B.the
C.the
D.the