除哪项外，下列皆可为血瘀的病因
NeitherEnglishnorChinese________difficulttolearn.
Themissingboyswerelastseen________neartheriver.
Asforfamilyeducation,parentsareencouragedtorelyon________ratherthanpunishment.
Wearepleasedtosaythatweare______tosupplyyou______thegoodsyouwant.
