题目选项分析

In an attempt to guarantee the security of its innovative water purification method, the company required each employee to sign a confidentiality agreement prohibiting disclosure of its water purification methods to any company using an analogous purification process.

In an attempt to guarantee the security of its innovative water purification method, the company required each employee to sign a confidentiality agreement that would prohibit its water purification methods to be disclosed to a company using an analogous purification process.