患者女，23岁，因“月经量多3年，偶有牙龈出血”来诊。查体：双下肢少量出血点，浅表淋巴结无肿大。胸骨无压痛。肝、脾肋下未触及。实验室检查：血常规：红细胞3.0×10112/L，血红蛋白67g/L，血小板30×109/L，网织红细胞0.03；外周血细胞涂片显示红细胞大小不等，以小细胞为主，中央淡染区扩大。
患者诊断为原发免疫性血小板减少症，首选的治疗为（）
A.环孢素
B.大剂量丙种球蛋白
C.脾切除
D.血小板生成素（TPO）及TPO类似物
E.泼尼松
参考答案：E
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| As darkness fell, hundreds of people in the Swiss village left their houses. They were looking 1 at the mountain top in the distance. It was covered with 2 -beautiful and dangerous. The huge mountain is called Matterhorn. Mountain climbers had 3 the top, using the southern route (路线). But no one had ever dared to try a winter climb up the 4 side. But now one man was daring to try the 5 route. He was Walter Bonatti, a great mountain climber from Italy. For two days he had climbed. The village people had 6 him anxiously (焦急地). Now 7 were waiting to see his signal (信号). If he planned to go on the next day, he would light a 8 signal. A red light would mean that he was 9 . A tiny green light 10 high on the mountain side. Bonatti was not giving up! The people 11 . The next day he continued his way upward. He was so lonely and so 12 ! But he would not 13 . Again that night he lit the green light. In the morning, Bonatti 14 . He could not see the top, but he knew he was surely there. Though the climb was 15 , he moved up. Bonatti had spent months 16 for the climb. Was the training enough? Did he have the strength (力量) and skill to climb to the top? He was finally at the 17 ! News about his 18 was radioed to the world. The trip along the southern route was easy. He was warmly 19 in the village. He had done the " 20 ", and would be well remembered as a climber of all time. | ||||
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