第15题:[单选题]( )Which of the following is a required GMDSS function? A. Transmit and receive locating signals B. Transmit and receive general communications C. Bridge-to-Bridge communications D. All of above 参考答案:D
第16题: [单项选择]分泌TNF-α的主要细胞为 () A. T淋巴细胞 B. B淋巴细胞 C. NK细胞 D. 单核巨噬细胞 E. 粒细胞 参考答案:D 答案解析:细菌脂多糖活化可诱导单核巨噬细胞产生TNF-α。