单项选择题

Scientists and doctors believed that Lorenzo's Oil ________.

A．was really effective
B．was a success story
C．only worked in theory
D．would save the boy's life
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单项选择题
The families of other ALD patients thought that ________.
A．the research for the new cure would cost too much money
B．the efforts of Lorenzo's parents were a waste of time
C．Lorenzo's parents would succeed in finding a cure
D．Lorenzo's oil was a real cure for ALD
单项选择题
Doctors said that Lorenzo might die within three years because ________.
A．they had never treated the disease before
B．Lorenzo was too young to be, cured
C．no cure had been found for ALD
D．ALD was a rare disease
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