Furthermore if such surveys are considered optional surveys then we believe the right to exercise the option is not left to the contractor, but to the Employer or his representatives.

而且如果这样的监控将被视为可选监控，我方相信其选择权也不是承包商的而是业主或者其代表的。

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After his big stock option exercise, Zuckerberg can walk in the footsteps of hi-tech icons such as Bill Gates and Steve Jobs.

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He also may exercise an option to purchase the building his company rents.

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