主页
学科
搜索
账户
常见问题
当前学科：心血管内科
题目：
单选
男性，38岁，呕咖啡样物500ml，黑便2次伴晕厥入院，既往有十二指肠球部溃疡史为了确诊，首选的检查方法是（）
A . A.急诊胃镜
B . 肝功能
C . 血常规
D . 腹部超声
E . 腹部平片
答案：
<查看本题扣1积分>
查看答案
答案不对？请尝试站内搜索
推荐知识点:
法的执行有哪些主要原则?
Dreams Dreams do not happen when you're asleep. They happen when you're awake. Whatever your goals are, always remember you can make it true. Whether it be love, money, a childhood dream, and ultimately happiness, the most important idea is that you must never lose sight of your dream. Create reminders. Think about your original motivation often. Besides obvious factors that will come along when your dream is realized, think about other reasons. Who are you doing this dream for? Remind yourself often of your plan. Physical symbols always help—posting up pictures of the end result, buying items that symbolize your goals. Express your dream frequently. Whisper your dream through moonlight. Shout it on a busy highway. Write it on a balloon and set it free. Write it on paper boats and float them in the ocean. Write it as a message on a bottle and float that into the ocean. Explore and try different ways of different cultures of making ishes come true, small or big: paper cranes, and shooting stars. Tell your pet if you have one. Tell it to all the people you care about in your life. Create deadlines and punishments. For every step along the way, think of a realistic deadline. If too small, eventually you will be crashed with all the work you need and possibly never do it. If too large, you will probably forget about it. Punishments are necessary. They can be keeping yourself away from your favorite activities. Get a friend or family member to enforce this punishment. Keep your life. Do not forget about friends, family, work, and especially yourself! Keep contact with friends and family: over the internet, visit them, write to them. Try not start skipping work to work on your dream. Keep your brain, body, and soul in good shape at all times. Sleep often, read often, and enjoy life. Brainstorm ideas for your dream. Mind mapping (essentially creative concept mapping) is the ideal way to brainstorm. Any creative outlet will do just fine to find some creative ideas for your dream, especially writing or drawing. Any sort of art, even singing, playing music, photography, wood-carving can work. Buy a journal or two. Find inspiration. Dreams happen when we′re asleep.（） As long as you can see your drearn, you can make it come true.（） We can ask somebody to remind us of our dreams.（） We can tell our dreams to anyone we like to show off.（） Punishments like paying a fixed amount of money are helpful.（） A friend or family member can help to enforce the punishment.（） In order to make your dream come true, you have to forget about friends, family, work, and especially yourself.（） Keeping your dream alive means having no time to enjoy life.（） Mind mapping is the most ideal way to brainstorm.（） A journal can arouse your inspiration.（）
孟子认为“人皆可以尧舜”。
什么是桥梁的标准跨径？
为评价地下岩层的裂隙发育程度，通常采用的是（）。
轧制电耗与轧制温度（）
张三是小偷中的“张三”周延
阐述第一阶段和第二阶段审核异同点
在下列引起通货膨胀的原因中，哪一个最可能是成本推进的通货膨胀的原因（）
供电系统对保护装置的基本要求是：（）