单项选择题
A.apparent B.appearing C.approaching D.apart
A.adoptedB.adaptedC.alarmedD.aided
A.introducers B.instructors C.conductors D.agents
A.demonstration B.frequency C.description D.instruction
A.varieties B.tops C.respects D.decks
A.peaks B.hills C.phases D.pink
A.crystal B.protein C.union D.conservative
A.us to go B.we went C.we shall go D.we go
A.appropriate B.appreciate C.admit D.affect
A.molecule B.oxygen C.genius D.rug
A.imported B.transferred C.transformed D.transported