单项选择题

A．answer questions about its temperature
B．translate the sounds into images
C．know how gases inside ebb and flow
D．measure the pitch
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单项选择题
A．prevent people from having trouble with teethB．stop teeth from falling outC．put men on the moonD．transplant hearts and other organs
A．prevent people from having trouble with teeth
B．stop teeth from falling out
C．put men on the moon
D．transplant hearts and other organs
单项选择题
A．the strategic partnership between the ELI and ChinaB．the dialogue in all areasC．the British effort to strike a deal on the ELI code of Conduct on arms exportsD．the US-EU relationship
A．the strategic partnership between the ELI and China
B．the dialogue in all areas
C．the British effort to strike a deal on the ELI code of Conduct on arms exports
D．the US-EU relationship
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