单项选择题对炭疽芽孢无效的消毒药是(2011 真题上74) A. 含氯石灰 B. 过氧乙酸 C. 苯扎溴铵 D. 溴氯海因 E. 氢氧化钠
单项选择题On the balance-of-payments statements, goods imports are classified in the:
