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【单选题】
A 16-year-old boy presents with a 24-hour history of severe abdominal pain, nausea, vomiting, and low-grade fever. The pain is initially periumbilical in location but has migrated to the right lower quadrant of the abdomen, with maximal tenderness elicited at a site one-third of the way between the crest of the ileum and the umbilicus. The leukocyte count is 14,000/mm3, with 74% segmented neutrophils and 12% bands. Surgery is performed. Which of the following describes the expected findings at the affected site?A.
Fistula connecting to the abdominal wall
B.
Granulation tissue with a prominent infiltrate of eosinophils
C.
Granulomatous inflammation with prominent aggregates of epithelioid cells and multinucleated giant cells.
D.
Massive infiltration of lymphocytes and plasma cells.
E.
Prominent areas of edema, congestion, and a purulent reaction with localized areas of abscess formation
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【多选题】YL-335B各工作单元的电气接线包括
A.
、在工作站装置侧完成各传感器引线到装置侧接线端口之间的接线。
B.
、在工作站装置侧完成各电磁阀引线到装置侧接线端口之间的接线。
C.
、在工作站装置侧完成电源端子引线到装置侧接线端口之间的接线。
D.
、在PLC侧进行电源连接、I/O点接线。