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【判断题】
氢氧化钠对病毒、细菌及寄生虫卵都有很好的杀灭作用。A.
正确
B.
错误
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举一反三
【简答题】Passage 1 A successful man is always asked--"What is the secret of your success?" People never ask a man who is a failure "What is the secret of your failure?" It is quite easy to see that they are no...
【单选题】The newscaused quite a _____in the village that she married a rich man who is 30 years older than her.
A.
stir
B.
shake
C.
tremble
D.
blast
【单选题】Passage Two 19.
A.
Teaching children how to manage their money.
B.
Bargaining with a car dealership.
C.
Arranging doctors' appointments.
D.
Purchasing pets.
【简答题】在分光光度计中，常因波长范围不同而选用不同材料制作的吸收池。可见分光光度法选用______吸收池；紫外分光光度法选用______吸收池；红外分光光度法选用带有______窗片的吸收池。
【单选题】It is strange, but quite common, that man usually the people and things around him, yet shows a keen interest in what is unavailable.
A.
overtakes
B.
overcomes
C.
overhears
D.
overlooks
【简答题】在光度分析中，常因波长范围不同而选用不同材料制作的吸收池。可见分光光度法中选用______吸收池；紫外分光光度法中选用______吸收池；红外分光光度法中选用______吸收池。
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