第21题: [单项选择]If the compass heading and the magnetic heading are the same then(). A. the deviation has been offset by the variation B. there is something wrong with the compass C. the compass is being influenced by nearby metals D. there is no deviation on that heading 参考答案:D
第26题: [单项选择]男性,25岁,发热,牙龈出血,皮肤瘀斑5天,胸骨压痛明显,肝、脾肋下触及。血红蛋白70g/L,白细胞50×109/L.血小板20×109/L,骨髓:原始细胞0.90,POX(-)、PAS阳性呈粗颗粒状、非特异性酯酶阴性,血清溶菌酶正常,诊断为() A. 急性早幼粒细胞白血病 B. 急性粒细胞白细胞 C. 急性单核细胞白血病 D. 急性淋巴细胞白血病 E. 急性红白血病 参考答案:D