《中国南方电网有限责任公司电力安全工作规程》规定了公司保障电力工作场所工作人员人身()的基本要求。
A.平稳
B.安全
C.健康
D.高效
参考答案:B, C
Nobody believed his reason for being absent from class he had to meet his father at the airport.
A.why
B.where
C.that
D.because
腹腔穿刺液中有大量中性粒细胞,革兰染色阳性球菌
A.原发性腹膜炎B.胃、十二指肠穿孔C.阑尾炎穿孔D.肝脾破裂E.出血坏死性胰腺炎