高选择性迷走神经切断术中被称为"罪恶支,易遗漏而造成术后溃疡复发的是指() A.迷走

题型:单项选择题

问题:

高选择性迷走神经切断术中被称为"罪恶支,易遗漏而造成术后溃疡复发的是指()

A.迷走神经后干

B.迷走神经前干

C.迷走神经终末"鸦爪"支

D.迷走神经腹腔支

E.迷走神经高位分布到胃底的分支

考点:甘肃住院医师消化内科Ⅱ阶段腹部外科学腹部外科学题库
题型:单项选择题

一个三棱锥,如果它的底面是直角三角形,那么它的三个侧面(  )

A.必定都不是直角三角形

B.至多有一个直角三角形

C.至多有两个直角三角形

D.可能都是直角三角形

题型:单项选择题

小明站在同一位置用数码相机(焦距可改变)对着小区里一棵树先后拍摄了两张照片甲和乙,如图所示。

(1)小明找来了一些凸透镜,但不知道它们的焦距,请你为他提供一种测量透镜焦距的方法。(可画图说明)

(2)测出凸透镜焦距后,小明先后选用了三个焦距分别为15cm、 10cm、5cm的凸透镜,在保持物距始终为35cm的情况下依次进行实验,发现所成的像越来越小,请你根据实验结果判断小明在拍摄哪一张照片时照相机镜头的焦距较大。

(3)在探究过程中,小明总是让物距保持不变,请你说出他这样做的理由。

题型:单项选择题
Directions: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context.
Behind our house is the start of a fascinating trail (小径). This trail is one of the old roads that wind through untold miles of forest. My   36 , Beans, and I walk the trail frequently. Normally, Beans sniffs alongside the trail to follow the smell of a deer track or  37  some cause known only to him.
Beans is a white dog, quite handsome and very   38 . He not only understands what we tell him, but also often makes sounds as if he were trying to   39  back.
One morning, we took a different route, which led us to an unfamiliar trail. I was sure this trail would eventually lead us to our familiar   40  . But, no. We seemed to be far off course. After two hours, I suddenly realized that Beans probably   41  the way home. So I urged, "Beans, take me home." He ran down a new trail. But it merely led to an intersection (岔道口) of trails.
Soon it became   42  that we were getting nowhere. I began to picture the rest of the day in the   43  without food or drink. We had walked about ten miles. But Beans seemed totally   44 . The sniffing and exploring was going well for him.
Finally, we   45 a crossroad near a highway. Lady Luck suggested I should turn left. We did and  46   reached a cottage beside a field. I knocked on the door and explained my situation to an old man. He laughed and then drove us home.
Since our adventure, I  47 that Beans probably knew all along how to get home.
He was just having too much fan exploring new trails.
小题1:
A.deerB.dogC.ladyD.man
小题2:
A.imagineB.considerC.exploreD.present
小题3:
A.smartB.sweetC.slowD.shy
小题4:
A.turnB.kickC.jumpD.speak
小题5:
A.drivewayB.pathC.crossroadD.highway
小题6:
A.knewB.sawC.showedD.made
小题7:
A.mysteriousB.ridiculousC.fascinatingD.apparent
小题8:
A.houseB.forestC.fieldD.cottage
小题9:
A.unconcernedB.unconsciousC.undecidedD.uncomfortable
小题10:
A.left forB.went offC.came toD.drove toward
小题11:
A.punctuallyB.frequentlyC.formallyD.shortly
小题12:
A.regrettedB.rememberedC.concludedD.confirmed
题型:单项选择题

新疆瓜果特别甜的主要原因是(  )

A.处于低纬度,水热条件优越

B.海拔高,均在4000米以上

C.海陆位置优越,临近江海

D.夏季昼夜温差大,有利于糠分积累

题型:单项选择题

用户可以通过直接输入()来创建表。

A.数据

B.字段

C.字段名

D.数据库

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