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【单选题】
下列不属于阿片类镇痛药的是A.
吗啡
B.
舒芬太尼
C.
安定
D.
E.
芬太尼
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反馈参考答案：
举一反三
【简答题】Only then __________ how much damage had been caused. A．she realized B．she had realized C．had she realized D．did she realize
【单选题】Only then _____ how much damage had been caused.
A.
she realized
B.
She had realized
C.
had she realized
D.
did she realize
【简答题】She said she was glad the difficulty had been _____. A. cleared away B. cleared up C. broken away D. broken down
【单选题】Only then _____ how much damage had been caused. [ ]
A.
she realized
B.
she had realized
C.
had she realized
D.
did she realize
【简答题】鱼的( )部位俗称“划水”,是鱼类运动和保持平衡的器官。
【单选题】关于胶原纤维的描述,错误的是
A.
纤维粗细不等，韧性大，抗拉力强
B.
HE染色标本上呈嗜酸性，染成粉红色
C.
新鲜时呈白色，又名白纤维
D.
化学成分为Ⅰ型和Ⅲ型胶原蛋白
E.
电镜下，由微原纤维黏合而成
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