题型:选择题 He looks worried. His notebook ____ by mistake yesterday. [ ]A. is taken B. was taken C. is taking D. was taking 查看答案
题型:单项选择题 案例分析题 男,81岁。骶尾部疼痛3个月,咳嗽2周,无发热,无外伤史。如骶骨病变呈膨胀性溶骨性骨质破坏,且骨破坏区内有散在斑片状钙化灶,则应考虑下列哪种疾病().A.软骨肉瘤B.脊索瘤C.化脓性脊椎炎D.骨结核E.骨巨细胞瘤F.骨髓瘤 查看答案
题型:单项选择题 假设某开放式基金的单位资产净值为1.8元,申购手续费率为4%,赎回手续费率是3%,则该基金的申购价和赎回价分别为( )元。A.1.8;1.8B.1.8×(1+4%);1.8×(1+3%)C.1.8×(1+4%);1.8×(1-3%)D.1.8×(1+4%);1.8 查看答案