单项选择题

Mothers, with the additional birth of every new child, have the risk of heart disease increased

A．by 30%.
B．by 12%.
C．by 18%.
D．by 42%.
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单项选择题
According to the speaker, David thinks the two different approaches
A．are working in parallel.
B．are working in harmony.
C．are working in discord.
D．are working in collaboration.
单项选择题
What is the man going to do
A．He is recommending the exhibition.
B．He is going to visit it reluctantly.
C．He usually holds exhibitions for weeks.
D．He is normally enthusiastic about exhibitions.
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