如图,四边形ABCD,BEFD,DEGH均为平行四边形,其中C,F两点分别在EF,GH上.若四边形 ABCD,BEFD,DEGH的面积分别为a,b,c,则关于a,b,c的大小关系,下列正确的是 () B.6a D. a=b=c DH F BC EG 相关知识点: 试题来源: 解析 A 连结EH,四边 H 形ABCD,BEFD. B DEGH均为平行 四边形,∴SBDC = SAB...
一副直角三角板如图放置,点C在FD的延长线上,AB∥CF,∠F=∠ACB=90°,∠E=45°,∠A=60°,AC=2,则CD的长为___.
(1)如图(1),已知,在△ABC中,AD,AE分别是△ABC的高和角平分线,若∠B=30°,∠C=50°.求∠DAE的度数; (2)如图(2),已知AF平分∠BAC,交边BC于点E,过F作FD⊥BC,若∠B=x°,∠
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tf::Vector3 globalTranslation_rh = cameraTranslation_rh * rotation270degXZ; tf::Transform transform = tf::Transform(globalRotation_rh, globalTranslation_rh); br.sendTransform(tf::StampedTransform(transform, ros::Time::now(), "camera_link", "camera_pose")); br.sendTransform(tf::StampedTransform...
NEC CEC - FR Series 和 FD Series 非金属流光灯具说明书
T_70115-077-72 Computer Data Acquisition System 数据获取系统,可将Traceable®记忆型宽量程温度计(15-078-2)和风速温度计(06-664-28)数据传输至电脑 1583.11 T_70115-077-720 5ML VACCN THRMTR, 1 DEG , 1EA 5毫升疫苗温度计 876.53 T_70115-077-721 5ML VACCN THRMTR, .5 DEG, 1EA 5毫升疫...
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FEATURE_SIGN sign = UF_NULLSIGN;//设置布尔 double douPt[3] = { 0.0, 0.0, 0.0 };//设置原点 char *cEdgeLen[3] = { "100", "100", "100" };//设置长宽高 tag_t tagBlock... java 开发语言 宽高 【NX二次开发ufun修剪体 修剪体int do(){ //创建块 UF_FEATURE_SIGN sign = UF...
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