单项选择题


A．essential
B．important
C．possible
D．inevitable
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单项选择题
A．getting byB．getting toC．getting throughD．getting over
A．getting by
B．getting to
C．getting through
D．getting over
单项选择题
The author uses the example of cancer patients to show that ______.
A．medical resources are often wasted
B．doctors are helpless against fatal diseases
C．some treatments are too aggressive
D．medical costs are becoming unaffordable
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