题目内容
（请给出正确答案）
[主观题]
With diabetic retinopathy, the damaged blood vessels in the retina A．are stron
With diabetic retinopathy, the damaged blood vessels in the retina
A．are stronger than what they used to be.
B．cannot be properly replaced.
C．are more likely to break than the new ones.
D．may return to normal again.
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