Mathematics _____ the language of science.
[     ]
a. is
b. has been
c. are
d. have been
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科目：初中英語(yǔ) 來(lái)源：101網(wǎng)校同步練習(xí)　初二英語(yǔ)　人教社（新課標(biāo)　2002－3年通過(guò)） 人教版 題型：016

All the people at the conference are ________．

[　　]

A．mathematic teachers

B．mathematics teacher

C．mathematics teachers

D．mathematic's teachers

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科目：初中英語(yǔ) 來(lái)源： 題型：單選題

All the people at the conference are ________．


  1. A.
    mathematic teachers
  2. B.
    mathematics teacher
  3. C.
    mathematics teachers
  4. D.
    mathematic's teachers

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