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【判断题】
紫外可见分光光度分析中,在入射光强度足够强的前提下,单色器狭缝越窄越A.
正确
B.
错误
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举一反三
【简答题】N owadays there appear many strange (ill) ___________ in the world.
【单选题】N owadays, email has been ___ used, and is playing an increasingly important roles in business communities.
A.
Familiarly
B.
widely
C.
Similarly
D.
Obviously
【简答题】N owadays, electronic (pay) _______ is a more convenient way to pay for purchases than cash and checks.
【单选题】N owadays, email has been ___ used, and is playing an increasingly important roles in business communities.
A.
familiarly
B.
widely
C.
similarly
D.
obviously
【简答题】修复工具和 都可以用于修复图像中的杂点、蒙尘、划痕及褶皱等。
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