下列关于桩冠的描述中,错误的是() A.桩越长固位越好 B.固位力取决于摩擦力和粘结 发布时间:2017-06-13 12:14 │ 来源:www.tikuol.com 题型:单项选择题 问题: 下列关于桩冠的描述中,错误的是()A.桩越长固位越好B.固位力取决于摩擦力和粘结力C.桩冠修复后可以减少根尖周病的发生D.修复前必须行完善的根充治疗
题型:单项选择题 Water as well as other resources ______ all over the world every day.A.is wastedB.are wastedC.wasteD.wastes 查看答案
题型:单项选择题 What I want to do most is to have____ quite interesting book, and ____ time to enjoy it.A.a; theB.the; theC.不填;theD.a; 不填 查看答案