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题库 / Prep2008E1-SC-221
In an attempt to guarantee the security of its innovative water purification method, the company required each employee to sign a confidentiality agreement prohibiting that its water purification methods be disclosed to companies using an analogous purification process.
prohibiting that its water purification methods be disclosed to companies
prohibiting them from the disclosing of its water purification methods to any company
prohibiting disclosure of its water purification methods to any company
that would prohibit them from disclosure of its water purification methods to companies
that would prohibit its water purification methods to be disclosed to a company
名词和从句，名词和ing，名词和不定式
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