单项选择题

when he submitted his papers in 1905, Einstein ______

A．forgot to make footnotes and citations
B．was little known in academic circles
C．was known as a young genius in math calculations
D．knew nothing about the format of academic papers

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单项选择题

What do scientists seem to agree upon, judging from the first two paragraphs

A．Einstein pushed mathematics almost to its limits.
B．It will take another Einstein to build a unified theory.
C．No physicist is likely to surpass Einstein in the next 200 years.
D．It will be some time before a new Einstein emerges.

单项选择题

Which of the following is the guarantee of a better future for US economy

A．Motor vehicles.
B．Housing market.
C．Business equipment.
D．Computer gear.