第6题: [单项选择]患者,女性,34岁,无明显诱因出现左下腹部疼痛,伴恶心呕吐。无停经史。查体:急症面容,脸色苍白,血压110/70mmHg,下腹有压痛和反跳痛,移动性浊音(-),体温38.5℃,血HCG正常,血白细胞升高。对于卵巢囊性畸胎瘤的临床和声像图表现,下列哪一项是错误的()。 A. 最常见于青年女性 B. 是常见的卵巢肿瘤 C. 也称皮样囊肿 D. 后方无声影或声衰减 E. 可见脂-液平面 参考答案:D
第9题: [单项选择]A scientist interested in adding to our general knowledge about oxygen would probably call his approach ______. A. applied science B. agriculture science C. pure science D. environmental science 参考答案:C 答案解析:第四段中讲到“aimed at satisfying curiosity,is referred to as pure science.”,即旨在满足求知欲的科学方法叫做纯科学,因此,增加我们在氧气方