单项选择题

What should host countries’ proper investment in environment include according to the communique

A．A vigorous private sector.
B．A legal framework.
C．A flexible labor market and prompt service of debt.
D．All above.
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单项选择题
Which of the following are the names of the man and woman’s children
A．Anne and Dick.
B．Amme and Jim.
C．Jim and Tom.
D．Mary and David.
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