第4题: [单项选择]下列有关全身炎症反应综合征(SIRS)的诊断标准中错误的是() A. 呼吸急促>20次/分获过度通气 B. 心率>100次/分 C. 体温>38℃或<36℃ D. 白细胞计数>12×109/L或<4×109/L E. 未成熟白细胞>10% 参考答案:B 答案解析:具有下列临床表现中两项以上者即可诊断:(1)体温>38C或<36C;(2)心率>90次/分;(3)呼吸频率>20次/分或过度通气,PaCO2<32mmHg;(4)WBC>12×109或<4×109或幼
第31题: [单项选择]化妆品中对( )规定限量要求 A. 汞、砷、铅、甲醛 B. 汞、砷、铅、甲醇 C. 汞、砷、铅、镍 D. 镍、汞、砷、甲醇 E. 镍、汞、砷、甲醛 参考答案:B
第32题: [单项选择]She felt suitably humble just as she ______ when he had first taken a good look at her city self, hair waved and golden, nails red and pointed. A. had B. had had C. would have had D. has had 参考答案:A 答案解析:[试题分析] 本题考查谓语动词的省略及动词的时态。
[详细解答] 由于when引导的时间状语从句用的是过去完成时,所以主句只能用过去的时态。本题中句子的主句用的是一般过去时(felt),那么其时间状