搜题请搜索小程序“爱下问搜题”
问题 单项选择题 共用题干题

患者女，54岁，右乳腺浸润性小叶癌（经典型）术后3年，右腋下淋巴结（0/18），ER及PR均阳性，CerbB-2阴性，术后内分泌治疗中。现发现左乳内上象限肿物1周，活动度差，粗针穿刺活检诊断为浸润性癌，左腋下可触及肿大淋巴结。行 * * 切除及同侧腋下淋巴结清扫术。大体检查：左乳肿瘤形态不规则，3.9cm×3.1cm×2.8cm，边界不清，质硬，切面灰白色。

确诊依据除外（）

A.癌细胞体积较小，均匀一致，彼此之间缺乏黏附性

B.癌细胞围绕正常乳腺导管呈同心圆样（靶环状）排列

C.见到正常的乳腺导管

D.癌细胞单个散在弥漫浸润于乳腺小叶外的纤维间质中

E.癌细胞呈单行线状排列

答案

参考答案：C

单项选择题

患者大便不干硬，虽有便意，临厕努挣无力，挣则汗出短气，便后疲乏，面色白，舌淡嫩苔薄，脉虚。其治法是（）

A．补脾和胃

B．温阳通便

C．益气补肺

D．温中健脾

E．益气润肠
查看答案
单项选择题

Our ape-men forefathers had no obvious natural weapons in the struggle for (1) in the open. They had neither the powerful teeth nor the p claws of the big cats. They could not (2) with the bear, whose strength, speed and claws (3) an impressive " small fire" weaponry. They could not even defend themselves (4) running swiftly like the horses, zebras or small animals. If the ape-men had attempted to compete on those terms in the open, they would have been (5) to failure and extinction. But they were (6) with enormous concealed advantages of a kind not possessed by any of their competitors.

In the search (7) the pickings of the forest, the ape-men had (8) efficient stereoscopic vision and a sense of color that the animals of the grasslands did not (9) . The ability to see clearly at close range permitted the ape-men to study practical problems in a way that lay far (10) the reach of the original inhabitants of the grassland. Good long-distance sight was (11) another matter. Lack of long-distance vision had not been a problem for forest-dwelling apes and monkeys because the (12) the viewpoint, the greater the range of sight-so (13) they had had to do was climb a tree. Out in the open, however, this simple solution was not (14) . Climbing a hill would have helped, but in many places the ground was flat. The ape-men (15) the only possible solution. They reared up as high as possible on their hind limbs and began to walk (16) . This vital change of physical position brought about considerable disadvantages. It was extremely unstable and it meant that the already slow ape-men became (17) still. (18) , they persevered and their bone structure gradually became (19) to the new, unstable position that (20) them the name Homo erectus, upright man.

12（）

A.lower

B.further

C.clearer

D.higher
查看答案