问题
选择题
In China, the needle treatment dates __ ancient times.
A．from
B．back to
C．back from
D．both A and B
答案
答案：D
date back to="date" from意思是:始于……
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In China, the needle treatment dates __ ancient times.
A．from
B．back to
C．back from
D．both A and B
答案：D
date back to="date" from意思是:始于……