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[主观题]
"To do this" (in Paragraph 3 ) means ______.A.to help patients recoverB.to increase the n
"To do this" (in Paragraph 3 ) means ______.
A.to help patients recover
B.to increase the number of heart surgeries
C.to get back the money spent on the equipment
D.to buy new equipment for the treatment of heart disease
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