搜题请搜索小程序“爱下问搜题”
问题 单项选择题 B型题

尤因肉瘤的主要治疗方式为（）

A.术前化疗+手术+术后化疗

B.手术

C.手术+术后化疗

D.术前放疗+手术

E.放疗

答案

参考答案：A

解析：联合化疗在恶性骨肿瘤综合治疗中的地位目前已得到广泛的公认。骨肉瘤和尤因肉瘤治疗原则相似。术前进行新辅助化疗，目的是提高全身控制率和保存肢体，使手术容易进行。术后标本进行病理组织学观察，根据化疗后组织坏死程度分为四级：Ⅰ级，几乎没有肿瘤坏死；Ⅱ级，肿瘤坏死率＜90%；Ⅲ级，肿瘤坏死率＞90%；Ⅳ级，肿瘤全部坏死，未见活的肿瘤细胞。参考坏死程度选择术后化疗方案，Ⅰ、Ⅱ级沿用术前化疗方案，Ⅲ、Ⅳ级更改方案。术前化疗周期数2～6个，术后2～4周期。软骨肉瘤对化疗不敏感，治疗以手术治疗为主，切缘阳性者还要考虑术后放疗。

单项选择题

What’s your earliest childhood memory Can you remember learning to walk Or talk The first time you heard thunder or watched a television program Adults seldom (1) events much earlier than the year or so before entering school, (2) children younger than three or four (3) retain any specific, personal experiences.

A variety of explanations have been (4) by psychologists for this "childhood amnesia". One argues that the hippo-campus; the region of the brain which is (5) for forming memories, does not mature until about the age of two. But the most popular theory (6) that, since adults don’t think like children, they cannot (7) childhood memories. Adults think in words, and their life memories are like stories or (8) one event follows (9) as in a novel or film. But when they search through their mental (10) for early childhood memories to add to this verbal life story, they don’t find any that fit the (11) . It’s like trying to find a Chinese word in an English dictionary.

Now psychologist Annette Simms of the New York State University offers a new (12) for childhood amnesia. She argues that there simply aren’t any early childhood memories to (13) . According to Dr. Simms, children need to learn to use someone else’s spoken description of their personal (14) in order to turn their own short-term, quickly forgotten (15) of them into long-term memories. In other (16) , children have to talk about their experiences and hear others talk about (17) --Mother talking about the afternoon (18) looking for seashells at the beach or Dad asking them about their day at Ocean Park. Without this (19) reinforcement, says Dr. Simms, children cannot form (20) memories of their personal experiences.

Notes: childhood amnesia 儿童失忆症。

13（）

A.recall

B.remember

C.reflect

D.respond
查看答案
单项选择题

Ⅲ度房室传导阻滞伴短阵室性心动过速，首选：（）

A.利多卡因

B.阿托品

C.心室起搏

D.电复律

E.心房起搏
查看答案