885-section2-7 求助！

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7.    Monitoring heart patients’ exercise, as well as athletes exercising, is now done by small transmitters broadcasting physiological measurements to nearby recording machines.
(A) Monitoring heart patients’ exercise, as well as athletes exercising, is now done by small transmitters broadcasting physiological measurements to nearby recording machines.
(B) Monitoring the exercise of heart patients, as well as athletes exercising, is now done by small transmitters broadcasting physiological measurements to nearby recording machines.
(C) Small transmitters broadcasting physiological measurements to nearby recording machines are now used to monitor the exercise of both heart patients and athletes.
(D) Broadcasting physiological measurements to nearby recording machines, small transmitters are now used to monitor heart patients’ exercise, as well as athletes exercising.
(E) Both athletes exercising and heart patients’ exercise are now monitored by small transmitters broadcasting physiological measurements to nearby recording machines.

此题正确答案是C  选项E是C的被动语态
E和C的区别是否仅仅是含义上的细小差别？除此之外E还有什么不对吗？

shellyaaa

athletes exercising 和 heart patients’ exercise 不对称

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这到是个致命的错误