单项选择题

In a true sense, plateways are the earliest and most primitive railways invented by ______.

A．industrial workers
B．George Stephenson
C．the miners
D．the miner’s work
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单项选择题
According to the passage, what is one major criticism students often make of published research
A．The research has been done in unimportant fields.
B．The researchers did not adequately establish the relationships involved.
C．The researchers failed to provide an appropriate summary.
D．The research has not been written in an interesting way.
单项选择题
What does the author conclude about preparing suitable questions for a research project
A．It is more difficult than the student researcher may realize.
B．The researcher should get help from other people.
C．The questions should be brief so that they will he understood.
D．It is important to follow formulas closely.
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