主页
学科
搜索
账户
常见问题
当前学科：石油科学概论
题目：
判断题
测定石油产品水分所用的冷凝管是球形冷凝管。
A . 正确
B . 错误
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:
男性，40岁。头晕、乏力1年。化验：RBC2.0×1012/L，Hb81g/LMCV120fl（120μm3），MCH40pg，诊断为巨幼细胞性贫血，行骨髓检查，下列哪项不符合该例的骨髓象改变（）
按照美国经济学家科斯的企业理论，导致市场机制和企业这两种资源配置方式的交易费用不同的主要因素是()。
小鼠睾丸细胞染色体畸变试验的特点符合（）
《环境保护违法违纪行为处分暂行规定》涉及的8项企业违法违纪行为及处分量级标准？
Good Table Manners Manners play an important part in making a favorable impression at the dinner table. Here are some general rules： Napkin （餐巾） use The meal begins when the host unfolds his or her napkin. This is your signal to do the same， so place your napkin on your lap. Unfold it completely if it is a small napkin. Or in half， lengthwise （纵向地） ，if it is a large dinner napkin. If you need to leave the table during the meal， place your napkin on your chair as a signal to your server that you will be returning. Once the meal is over， place your napkin neatly on the table to the right of your dinner plate. Do not refold it. Use a napkin only for your mouth. Never use it for your nose， face or forehead. Use of utensils （餐具） Start with the knife， fork or spoon furthest from your plate， and work your way in， using one utensil for each course. If soup is served， remember to spoon away from yourself. This helps stop the drips. Do not put the entire soup spoon in your mouth. Instead， fill a soup spoon about 75 per cent with soup， and sip（啜饮）it from the side noiselessly. After finishing dinner， place the knife and fork parallel to one another across the plate with the knife blade facing inward toward the plate. Using your fingers Here's a list of finger foods： sandwiches， cookies， small fruits or berries with stems， French fries and potato chips， and hamburgers. Chew（咀嚼）with your mouth closed and don't make noise； don't talk with your mouth full. Bread must be broken with your hands. It is never cut with a knife. Don't pick something Out of your teeth. Instead， excuse yourself to the bathroom. If possible， try not to cough at the table. Do not put your elbows （肘） on the table. In France， it is essential to have both hands above the table at the same time. Do not put bones or anything else on the table. Things that are not eaten should be put on your plate. The napkin is used only for（）.
项目经理、技术负责人负责对施工过程档案的监管；项目专职资料员负责工程项目档案资料的（）、（）、（）和（）工作，保证工程项目各种档案资料的完整、准确和真实有效。
安装（回撤）机电管理中要求公司下达的设备大修计划完成（）以上。
机械性肠梗阻病人，当腹部X线检查显示下列哪种变化时，应考虑绞窄性肠梗阻的可能（）
资助政策体系的各项政策对家庭经济困难学生分别发挥着什么样的作用？
AC在网络中可进行的组网模型有（）两种方式。