[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"kakomon-q-2026-ippan-30":3},{"slug":4,"exam_year":5,"exam_round":6,"section":7,"section_code":8,"number":9,"body":10,"choices":11,"correct_indices":28,"explanation":29,"has_explanation":22,"tags":30},"2026-ippan-30",2026,4,"一般","ippan",30,"豚の妊娠期間はどれか。",[12,16,19,23,25],{"index":13,"body":14,"is_correct":15},1,"21日",false,{"index":17,"body":18,"is_correct":15},2,"63日",{"index":20,"body":21,"is_correct":22},3,"114日",true,{"index":6,"body":24,"is_correct":15},"155日",{"index":26,"body":27,"is_correct":15},5,"280日",[20],"正答は3（114日）。豚の妊娠期間は約114日（およそ3か月3週3日）とされる。1の21日・2の63日は短すぎ（63日は犬猫）、4の155日・5の280日は長すぎる（280日はヒトや牛に近い）。よって114日。**覚え方**: 豚の妊娠は『3・3・3』＝3か月3週3日で約114日。",null]