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  3. ( )a professor of physics at Massachusetts Institute of Technology, Edward Charles Pickering established the first physics labor

( )a professor of physics at Massachusetts Institute of Technology, Edward Charles Pickering established the first physics labor

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问题 ( )a professor of physics at Massachusetts Institute of Technology, Edward Charles Pickering established the first physics laboratory in the United States.
选项 A、While
B、Being
C、Although
D、He was
答案B
解析
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