49.If you want this pain killer,youll hace to ask the doctor for a _______.
A.receipt 收据 收条
B.recipe (法语)食谱
C.subscription 1捐赠 捐款 2 杂志或报纸的订阅量(circulation n 发行量(35页70题A)
D.prescription 处方药
解析:
pain killer 止痛药
v prescribe
morpline 麻醉药
anesthesia
loop 圈
50.Some fish have a greater ________ for acid water than oters.
A.toleratance 容忍 忍耐力(耐药性)
B.resistance 抵抗力
C.dependence 依赖性 赖药性(independent 独立的)
D.persistence 坚持 固执 抗打击能力
知识扩展:
acid 酸
repel 抗拒 defy 违抗 使不可能
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