采取渠道防渗措施,渗漏损失可减少( )A.40%~60%B.50%~70%C.60%~80%D.70%~90%
采取渠道防渗措施,渗漏损失可减少( )
A.40%~60%
B.50%~70%
C.60%~80%
D.70%~90%
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甲亢行手术治疗时,应切除的比例是A.40%~50%B.50%~60%C.60%~70%D.70%~80%E.80%~90%
采取渠道防渗措施,渗漏损失可减少( )
A.40%~60%
B.50%~70%
C.60%~80%
D.70%~90%