问题 单项选择题 A1/A2型题

下列不属于早期食管癌食管钡餐造影表现的是()。

A.糜烂型病变处黏膜紊乱中断,有糜烂或浅表溃疡,钡餐造影表现为不规则斑点状存钡区,也可呈虚线状或地图状改变

B.斑块型病变处黏膜不规则,稍有肿胀隆起,表面粗糙呈颗粒状,黏膜粗细不均,可有中断,如卧蚕状,或伴有浅表糜烂的小龛影,局部管壁略僵硬

C.腔内型病变处见管腔内息肉状充盈缺损,并浸润食管肌层壁,肿瘤表面有糜烂或溃疡所致的斑片状的钡剂残留,钡流受阻明显

D. * * 型肿瘤呈结节状、 * * 状或息肉状隆起,突入管腔,形成充盈缺损,其边缘与周围黏膜分界清楚,局部黏膜中断,管壁舒张度差,瘤体表面偶见糜烂,似橘皮状

E.平坦型癌肿位于黏膜表面,病变处黏膜既无隆起,又无凹陷,局部黏膜仅呈充血改变,食管造影常常无阳性表现,有时可见局部管壁略僵硬

答案

参考答案:C

解析:钡流受阻,浸润食管肌层壁时分期较晚,不是早期。

完形填空

Section B

Directions: Complete the following passage by using the words in the box. Each word can only

be used once.  Note that there is one word more than you need.

A.probably

B.attached

C.respectively

D.finalists E. beatingF.  sales    G. amazing     H. similar    I. included   J. contest

Do you have a problem with the messy homework? Good news! You may soon be able to solve that, thanks to Keagan Bolibol and her Problem Pad.

Keagan is the winner of the Staples Invention Quest for kids, a (41)________ that encourages people to invent helpful office products. This is the first year that the Invention Quest has (42)________ a category for kids. “ I’m very excited,” Keagan told Scholastic News Online. “ I really can’t believe I actually did it. From the moment I entered it, it’s really (43)________that I should make it this far.”

Keagan was one of the five (44) _______ in the kids’ category. She is a fourth-grader in Woodinville, Washington.  Keagan’s Problem Pad is (45)________ to a dry-erase board except that it can fit into a notebook. It also has a pen (46)_______ to the bottom, along with helpful tools like a multiplication table (乘法表). Kids can use the Problem Pad to do their homework and other projects. They can make mistakes and then erase them. When they finally get them right, they can copy their work on a clean sheet of paper.

Keagan received a $25,000 prize for her invention, (47) ________ thousands of other kids. If her product is produced and sold in Staples stores, she can also receive royalties(版税),part of the money made from (48)________ of a product. “ I’m (49) ________ going to donate some to charities. Then the rest is for college,” said Keagan.

单项选择题