问题
选择题
The plan ________encourage the employees to improve their work turned out to be a success.
A．having designed to
B．designed to
C．to design to
D．designing to
答案
答案：B
略
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The plan ________encourage the employees to improve their work turned out to be a success.
A．having designed to
B．designed to
C．to design to
D．designing to
答案：B
略