患者,女,36岁。腹痛、发热1个月余就诊。常有腹泻、便秘交替,抗生素治疗无显效。体检: 右下腹压痛,未扪及包块,X线钡剂检查见盲肠缩短,回盲部有钡影跳跃征,最恰当的治疗是
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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