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腭裂手术时在腭部黏骨膜下注射含肾上腺素的麻药或生理盐水的主要目的是

单选题
2021-09-01 19:46
A、减少疼痛
B、减少出血,便于剥离
C、减少肿胀
D、防止血管损伤
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正确答案
B

试题解析

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