【C9】A．selectionB．discriminationC．separationD．prejudice

【C9】A．umberB．teamC．crowdD．staff

【C9】A．vitalB．casualC．fatalD．subtle

【C14】A．selectionB．electionC．optionD．choice

A．selectionB．optionC．alternativeD．substitute

Having so little money to spend on an apartment does limit you in your______.A．selectionB．

番泻苷A中两个蒽酮母核的连接位置是（)A.C1—C1B.C2—C2C.C9—C9D.C10—C10E.C9—C10