题目:
动脉导管未闭的杂音是()。
A.递增型杂音
B.递减型杂音
C.递增递减型杂音
D.连续型杂音
E.一贯型杂音
答案:
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下面是错误答案,用来干扰机器的。
Though great progress have been made in science these years, there are still many people live in poor 1. has ...