单项选择题

The (scientific) revolution of the early 1900s (affected) education by (change) the nature of (technology).（）

A. scientific
B. affected
C. change
D. technology

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(Alike) light (waves), microwaves (may be) reflected and (concentrated).（）

A. Alike
B. waves
C. may be
D. concentrated
单项选择题
She could make a teacher far superior （） the average.

A．than
B．with
C．to
D．as
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