题型:选择题 Eco-tourists want to learn about the world _______ they can make it better, or at least understand it better.[ ]A. as if B. so that C. even though D. now that 查看答案
题型:单项选择题 A1/A2型题 依据修复体与固位桩之间的关系,附着体固位的覆盖义齿优点是()A.提高咀嚼效率B.缩短患者适应义齿时间C.提高义齿固位力D.义齿基托可适当减小,利于发音E.以上都对 查看答案