[多项选择]胃肠道外GIST（extragastro intestinal stromal tumor，EGIST）指发生在胃肠道以外的其他部位或器官的GIST，常见的部位有（）
A. 胸腔内
B. 大网膜
C. 肠系膜
D. 胆囊
E. 后腹膜

[多项选择]胃肠道外GIST（extragastrointestinalstromaltumor，EGIST）指发生在胃肠道以外的其他部位或器官的GIST，常见的部位有（）
A. 胸腔内
B. 大网膜
C. 肠系膜
D. 胆囊
E. 后腹膜

[单项选择]肠道的胃肠道间质肿瘤（GIST）最常发生于（）
A. 空肠
B. 回肠
C. 十二指肠
D. 直肠
E. 结肠

[单项选择]关于GIST不正确的是（）
A. 起源于胃肠道管壁的细胞
B. 可显示为平滑肌和神经成分两种分化的肿瘤
C. ＞80%的GIST的KIT及S-100表达阳性
D. 判断间质瘤良恶性的组织学标准主要是根据核分裂象计数，结合肿瘤体积大小
E. 核分裂＞5／50HPF，无论肿瘤大小都属于恶性

[多项选择]GIST的治疗要点有（）。
A. 争取手术彻底切除或姑息切除原发灶
B. 对复发转移不能切除的肿瘤，首选甲磺酸伊马替尼治疗
C. 常规放、化疗几乎无效
D. 体积较小的GIST不需要手术切除
E. 完整彻底切除GIST肿瘤后，不会发生转移和复发

[单项选择]关于GIST发生起源的正确描述是（）。
A. GIST起源于ICC细胞
B. GIST起源于平滑肌细胞
C. GIST起源于肌层神经鞘
D. GIST起源于胃肠壁黏膜上皮细胞
E. GIST起源于黏膜下层

[多项选择]目前所了解的GIST发生的分子基础是（）。
A. c-kit基因突变是GIST发病机制的核心环节
B. p53基因突变是GIST发病机制的核心环节
C. PDGFRα基因突变对c-kit野生型GIST的发生和发展起着重要作用
D. Kras基因突变是GIST发病机制的核心环节
E. Kras基因缺失是GIST发病机制与核心环节

[单项选择]

Cooking Oil Fumes Cause Tumor

The leading cause of lung cancer among women in the city was cooking oil fumes while men are more likely to develop the disease from smoking, said medical experts after a five-year research study.
Doctors announced the results yesterday with analysis on some new tendencies in lung cancer. They said patients are younger, especially women.
According to the Shanghai Tumor research Institute, more local residents die of lung cancer in the city than anything else. Following breast cancer, it has the second-highest incidence rate.
"An unhealthy lifestyle is a very important reason for lung cancer," said Dr He Yumin from Shanghai Minshen Traditional Chinese Medicine Tumor Diagnosis and Treatment Center.
He followed 2,276 lung cancer patients for five years. Among them, 1,433 were male.
Smoking causes 70 percent of cases among men while only 18 percent of female patients developed
A. Heart disease.
B. Breast cancer.
C. Infectious diseases.
D. Lung cancer.

[单项选择]胃肠减压对腹部，尤其胃肠道手术非常重要。胃肠减压的护理错误的是（）
A. 减压期间禁饮食
B. 绝对不许胃内给药
C. 保持引流通畅
D. 观察引流液性质及量
E. 加强口腔护理

[单项选择]
The leading cause of lung cancer among women in the city was cooking oil fumes while men are more likely to develop the disease from smoking, said medical experts after a five-year research study.
Doctors announced the results yesterday with analysis on some new tendencies in lung cancer. They said patients are younger, especially women.
According to the Shanghai Tumor research Institute, more local residents die of lung cancer in the city than anything else. Following breast cancer, it has the second-highest incidence rate.
"An unhealthy lifestyle is a very important reason for lung cancer, " said Dr. He Yumin from Shanghai Minshen Traditional Chinese Medicine Tumor Diagnosis and Treatment Center.
He followed 2,276 lung cancer patients for five years. Among them, 1,483 were male.
Smoking causes 70 percent of cases among men while only 18 percent of female patients developed cancer fr
A. Irritated eyes and throat.
B. Severe pain in both lungs.
C. Continuous cough and headache.
D. Difficulty in breathing.