单项选择题


A.skin
B.tissue
C.organ
D.muscle
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单项选择题
A.manipulationB.managementC.manufactureD.maturity
A.manipulation
B.management
C.manufacture
D.maturity
单项选择题
A.restrictB.resistC.reverseD.retrieve
A.restrict
B.resist
C.reverse
D.retrieve
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