如图所示,分别用水平力拉同一个物体,使它在同一水平面上做匀速运动,己知物体受到的 发布时间:2017-07-25 22:00 │ 来源:www.tikuol.com 题型:填空题 问题: 如图所示,分别用水平力拉同一个物体,使它在同一水平面上做匀速运动,己知物体受到的重力为150N,摩擦力为30N,则F1=______N,F2=______N.
题型:填空题 根据句意及首字母提示补全单词。1. People can enjoy n_______ in the countryside. The air is fresher and the sky is bluer there. 2. She c_______ the table with a cloth yesterday. 3. In the o_______, there are all kinds of fishes. 4. She was full of j_______ because her parents love her. 5. Thousands of old trees were in the f_______ ten years ago, but now there are few. 查看答案
题型:填空题 患儿,男,8岁,眼睑水肿4天伴尿少,近2日尿呈浓茶色,患儿无尿频、尿急、尿痛。患儿3周前曾患上呼吸道感染。查体:T36.2℃,R26次/分,P100次/分,BP130/90mmHg,神清,双眼睑及颜面浮肿,双足背轻度非凹陷性水肿,心肺(-),腹软,肝脾肋下未及。尿常规:大量红细胞,尿蛋白++。该患儿正确的诊断是()A.先天性肾病B.单纯性肾病C.肾炎性肾病D.急性肾小球肾炎E.泌尿系感染 查看答案
题型:填空题 男,2个月,患先心病,气促2天,伴轻咳嗽,无发热。查体:呼吸65次/分,无发绀,两肺闻及细湿啰音,心率170次/分,心音低钝,胸骨左缘2~3肋间闻及Ⅳ级收缩期杂音,伴有震颤,肝脏肋下4cm,剑突下4cm,X线胸片示心胸比率0.60,左心室增大,肺纹理增多,叶间胸膜明显。本病儿出现声音嘶哑,其原因是()。A.扩张的右心房压迫喉返神经B.扩张的左心房压迫喉返神经C.扩张的主动脉压迫喉返神经D.扩张的肺动脉压迫喉返神经E.扩张的左心室压迫喉返神经F.扩张的右心室压迫喉返神经 查看答案