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【单选题】
内分泌系统的反馈调节是指( )。A.
神经系统对内分泌系统的调节
B.
内分泌系统对神经系统的调节
C.
免疫系统对内分泌系统的调节
D.
下丘脑一垂体一靶腺之间的相互调节
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【多选题】What do the customs officers usually say when you check your bags at the airport? ( )
A.
Are you checking any bags?
B.
Please put it on the scale.
C.
Can you put it on the scale, please?
D.
Handles up.
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