It can be inferred that by the eleventh century the Byzantine military forces______.
A. had reached their peak and begun to decline
B. had eliminated the Bulgarian army
C. were comparable in size to the army of Rome under Augustus
D. were strong enough to withstand the Abbasid Caliphate's military forces
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The two conversations quoted here imply that______.
A. both working class mothers and middle class ones can refuse a request reasonably
B. neither working class mothers nor middle class ones want their children to eat very often the ice cream
C. working class mothers often speak more authoritatively
D. middle class mothers often speak with elaborated code
According to the author, what made the Japanese young people feel doubt about their personal sacrifices？
A. The foreigner's praise.
B. The rapid development of Japanese economy.
C. The coming of age of the postwar baby boom.
D. The social progress.
The difference between middle class and working class children in educational achievements
A. background
B. language use
C. status
D. intelligence
Early identification of HIV-infected patients can help
A. save money on treatment.
B. prevent the spread of the disease.
C. carry out other tests.
D. provide patients free evaluation.
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