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案例分析题女性，18岁，发热鼻出血，皮肤紫癜2周，舌尖可见血泡，双下肢可见瘀斑，浅表淋巴结及肝脾未及，胸骨压痛阴性，血红蛋白52g/L，白细胞2.0×109/L，分类中性0.24，淋巴0.75，嗜碱粒0.01，血小板22×109/L，网织红细胞0.001，胸部X线片示右下肺炎。治疗应积极考虑使用（）

A. 叶酸，维生素B12
B. 硫酸亚铁或右旋糖酐铁
C. 维生素C，雄激素
D. 同种异基因骨髓干细胞移植
E. 促红细胞生成素

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案例分析题女性，36岁，主诉头晕、乏力、3年来月经量多，浅表淋巴结及肝、脾无肿大，血红蛋白58g/L，白细胞8.0×109/L，血小板185×109/L，血片可见红细胞中心淡染区扩大，网织红细胞计数0.005. 寻找病因应首选下列哪项检查（）

A. 放射性核素骨扫描
B. 妇科检查
C. 51Cr红细胞半寿命期测定
D. 钡剂灌肠
E. 胸部X线检查

案例分析题女，32岁，低热，发作性酱油色尿3个月。体检：巩膜黄染，贫血面容，肝、脾不肿大，红细胞2.5×1012/L，血红蛋白50g/L，血小板100×109/L，白细胞4.5×109/L，网织红细胞计数0.15，尿隐血试验阳性：病人如需治疗，应输注下列哪项血制品为宜（）

A. 全血
B. 洗涤红细胞悬液
C. 白蛋白
D. 丙种球蛋白
E. 血小板悬液

But when you do, it’s not half as hard as you thought it would be, and it’s twice as rewarding as you might have hoped.

A) 但当你真正做的时候，它的难度还不到你预料的一半，而它的好处却是你原本期望的两倍。
B) 但当你真正做的时候，它还不到你以前想的一半难，而它的好处却是你曾经希望过的两倍。
C) 但当你做的时候，它是你想的一半难，是两倍你希望的。
D) 但做的时候，它不到一半难，而且是你希望的两倍好。

Task 5 Established in 1987, Central Mountain Air (CMA) is a Western Canadian privately owned and operated company. It offers scheduled and charter flights to over 17 British Columbia and Alberta communities. At present, CMA employs over 300 people, including administrative, maintenance and flight personnel maintaining bases in Smithers, Vancouver, and Calgary. CMA’s headquarter is located in Smithers B.C. Its regional administrative, sales and marketing is conducted from our office in Calgary. Central Mountain Air currently operates the following business streams: — CMA the Regional Airline — CMA Charter Services — CMA Contract Services CMA connecting customers traveling to or from Campbell River, Comox, Quesnel & Williams Lake, B.C. through Vancouver’s International airport will be provided with onward boarding passes and through checked baggage. What kind of services does CMA offer to its customers

A. Scheduled and charter flights services.
B. CMA the Regional Arifine
CMA Contract Services.
D. All of the abov