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预：[yù]基本解释 1、事前 ：预习。预计。预见。2、参与 ：干预。参预。字形演变：/iknow-pic.cdn.bcebos.com/377adab44aed2e731907c3328901a18b86d6fac6"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/377adab44aed2e731907c3328901a18b86d6fac...
分别延长DM、AB相交于N，∵∠ABC=∠C=90°，∴AB∥CD，∴∠MDC=∠N，∵DM平分∠ADC，∴∠MDC=∠MDA，∴∠MDA=∠N，∴AD=AN，又M为BC中点，∴MC=MB，又∠C=∠MBN=90°，∠CMD=∠BMN，∴ΔMCD≌ΔMBN，∴DM=MN，BN=CD，∴AM平分∠DAB，AM⊥DM(等腰三角形三线合一)。AD=AN=AB+CD。
3、进去本地组策略编辑器界面之后，点击管理模板，点击Windows组件，点击InternetExplorer。/iknow-pic.cdn.bcebos.com/377adab44aed2e734c8289368801a18b87d6fa45"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/377adab44aed2e734c8289368801a18b87d6fa45?x-...
x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/9e3df8dcd100baa1c334d5b54810b912c8fc2ea7"/> 2，在打开的主菜单中点击“设置”菜单项。/iknow-pic.cdn.bcebos.com/377adab44aed2...
解：（1）作MN⊥AD交AD于N ∵ ∠1=∠2，DM为公共边 ∴Rt△DCM≌Rt△DNM ∴MN=MC=MB 又：AM为公共边 ∴Rt△ABM≌Rt△ANM ∴∠3=∠4 ∴AM平分∠BAD （2）DM⊥AM，理由如下：∵∠B=∠C=90° ∴ DC//AB ∴∠BAD=∠CDA=180° ∵∠1=∠2,∠3=∠4 ∴∠1+∠3=90° ∴△ADM...
三个结论都正确：证明：1、∵AD∥BC ∴∠DAB+∠ABC＝180 ∵AP平分∠DAB，BP平分∠ABC ∴∠PAB＝∠DAB/2, ∠PBA＝∠ABC/2 ∴∠PAB+∠PBA＝（∠DAB+∠ABC）/2＝90 ∴AP⊥BP 2、过点P作PG⊥AD于G，PH⊥AB于H，PQ⊥BC于Q ∵AP平分∠DAB，PG⊥AD，PH⊥AB ∴PG＝PH ∵BP平分∠ABC，...
1、首先打开我们手机内的浏览器，在最下端有如图类似"三"的设置图标。/iknow-pic.cdn.bcebos.com/377adab44aed2e73b65c754a8a01a18b87d6fa1b"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/377adab44aed2e73b65c754a8a01a18b87d6fa1b?x-bce-...
预：[yù]基本解释 1、事前 ：预习。预计。预见。2、参与 ：干预。参预。字形演变：/iknow-pic.cdn.bcebos.com/377adab44aed2e731907c3328901a18b86d6fac6"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/377adab44aed2e731907c3328901a18b86d6fac...
2、进入我的页面后，以查询花呗订单为例，找到花呗选项，然后点击进入。/iknow-pic.cdn.bcebos.com/377adab44aed2e731beac1c48901a18b86d6fad3"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/377adab44aed2e731beac1c48901a18b86d6fad3?x-bce-...
1、首先打开我们手机内的浏览器，在最下端有如图类似"三"的设置图标。/iknow-pic.cdn.bcebos.com/377adab44aed2e73b65c754a8a01a18b87d6fa1b"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/377adab44aed2e73b65c754a8a01a18b87d6fa1b?x-bce-...