条料在模具送料平面中必须有两个方向的限位，一是在与（）方向上的限位，保证条料沿正确的

女性，60岁。上腹痛2天，2天前进食后1小时上腹正中隐痛，逐渐加重，呈持续性，向腰背部放射，仰卧、咳嗽或活动时加重，伴低热、恶心、频繁呕吐，吐出食物、胃液和胆汁，吐后腹痛无减轻，多次使用镇痛药无效。既往有胆石症多年，无明确的肝病史。查体：体温39℃，脉搏104/分钟，呼吸30/分钟，血压90/50mmHg，意识淡漠，侧卧位，皮肤干燥，上腹部轻度肌紧张，压痛明显，可疑反跳痛，未触及肿块，Murphy征阴性，肝肾区无明显叩击痛，移动性浊音可疑阳性，肠鸣音稍弱，双下肢不肿。化验：血红蛋白120g/L，白细胞22×10⁹／L，中性粒细胞86%，淋巴细胞14%，血小板110×10⁹／L，血清尿素氮7.0mmol/L，尿蛋白（±），红细胞2～3个／高倍，尿淀粉酶32U（Winslow法），腹部X线平片未见膈下游离气体和液平，肠管稍扩张。

该患者初步诊断考虑（）

A.急性重症胰腺炎

B.胆囊结石

C.肠梗阻

D.急性化脓性胆管炎

E.消化道溃疡

In China, Mother^’s Day is becoming more popular, and carnations（康乃馨）are a very popular gift. In 1997  48  was set as the day to help poor mothers, specially to remind people  49_ the poor mothers in rural areas. In the People^’s Daily,  50_ article explained that “despite originating in the United States, people in China take the holiday   51   it goes in line with（符合） the country^’s traditional ethics（道德标准）—respect to the elderly and filial piety（子女的孝顺）to parents.” In recent years many people began 52  advocate for the official adoption of Mother^’s Day  53  memory of Meng Mu, the mother of Meng Zi, and some officials even formed a non-governmental organization called Chinese Mothers^’ Festival Promotion Society, with the support 100 Confucian scholars and lecturers of ethics. They also ask to replace the Western gift of carnations with lilies（百合花),   54_, were planted by Chinese mothers  55 children left home in ancient times.

公路养护是加强以（）为中心的全面养护

A、路基

B、路面

C、构造物

D、沿线实施

李自成本不是（）的人，他对于明室的待遇也是非常宽大。

A：固执己见

B：刚愎自用

C：自以为是

D：自命不凡

负载或电源两端被电阻近似为零的导线直接连接起来称做（）。

A、断路

B、开路

C、短路

D、通路