单项选择题

The Australian Federal Parliament is modeled on ______.

A. the Westminster system
B. the White House system
C. the United Nations system
D. the Aboriginal system
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单项选择题
Which of the following is NOT a medical problem ancient Egyptians used to have
A．Dental decay.
B．Tooth erosion.
C．Malignant tumors.
D．Insomni
单项选择题
The following are very common among ancient Egyptians EXCEPT ______.
A．abscess
B．intestinal parasites
C．anaemia
D．drug addiction
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