单项选择题

A．has come into being
B．had come into being
C．came into being
D．comes into being
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单项选择题
A．ensureB．protectC．undertakeD．promise
A．ensure
B．protect
C．undertake
D．promise
单项选择题
A．register nameB．advertisementC．business philosophyD．organization form
A．register name
B．advertisement
C．business philosophy
D．organization form
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