【C17】A．anxietiesB．worriesC．concernsD．cares

【C17】A．freedomB．freeC．somethingD．money

【C17】A．relievedB．delegatedC．approvedD．performed

【C12】A．care aboutB．care forC．care withD．take to

___________ 查看材料A.diseaseB.feelingsC.concernsD.canc

A．care withB．care forC．care ofD．care about

具有怎样结构的甾体激素类药物可用四氮唑比色法测定（)。A C17－a－甲酮基B C17－a－ 醇酮基C C20 －