先天性肥厚性幽门狭窄应与哪些疾病鉴别。

第二节短文改错（共10小题，每题1分，满分10分）

假如英语课上老师要求同学们交换修改作文，请你修改你同桌写得一下作文。文中共有10处语言错误，要求你在错误的地方增加、删除或修改某个单词。

增加：在缺词处加上一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该次下面写上修改后的词。

注意：1. 每处错误及其修改均仅限一词；

2. 只允许修改10处，多者（从11处起）不计分。

I have made a new friends recently. His name is Jackson, and he is from the America. How did we get to know each other? You may think we are pen-friends, and you are wrong. We actually have never written to each other before we met. Here is the story. A week before, there was a summer camp in our school. Some American students came to join in us. I was very good on English, especially spoken English, so I was chosen to take part this camp. Jackson was very interesting in Peking Opera, and I liked it, too. When I told Jackson that, he felt very excitedly. We talked a lot about Peking Opera. He said he had a very good time and hoped he would come again quite soon.

延年胡同原名“馓子胡同”，延年胡同3号原是清代大太监李莲英的一处住所，光绪二十年，李莲英被赏戴( )品顶戴花翎，雍正皇帝规定太监品级以四品为限。

A．一品

B．二品

C．三品

D．四品

民警丙、丁二人在辖区内巡逻，发现一男子正从储蓄所的窗户钻出来，夹着一个大包裹，于是命令其站住，该男子看见警察撒腿就跑。丁民警鸣枪示警，该男子没有停下。跨过铁路就是树林，很容易逃脱，民警丁只好开枪，击中其腰部，擒获该男子。

中国传统文化中体现关注人、重视人、崇尚人的价值取向的经典名句有许多，下列体现生命至上、以人为本理念的经典名句是（）

①《论衡·效力》：“人有知学，则有力矣。”

②《孝经》记述孔子之言：“天地之性人为贵。”

③《庄子·知北游》：“生也死之徒，死也生之始。”

④《论语•乡党》：“厩焚。子退朝，曰：‘伤人乎？’不问马。”

A.①③

B.②④

C.①④

D.②③

试验变压器工作电压比电力变压器一般要高，所以设计时采用较大的安全系数。