全瓷修复体粘结面处理不正确的是（）. A.可采用30％～50％的磷酸处理 B.长石质 发布时间：2017-08-29 23:04 │ 来源：www.tikuol.com 题型：单项选择题 问题： 全瓷修复体粘结面处理不正确的是（）.A.可采用30％～50％的磷酸处理B.长石质陶瓷用氢氟酸处理C.表面用硅烷处理D.可以采用喷砂处理E.超声清洗
题型：单项选择题 完形填空。 One bright summer day, boys and girls were having a walk with their teacher near the zoo. They walked and 1 happily. After a while, they came to a 2 over the river, and they took turns to go across it. When they just reached the middle, there came a great shout of warning behind them. The teacher told them 3 , and she turned back and listened. When she heard the voice" 4 !", she knew what would happen. Before she could do anything she saw a wolf 5 towards the bridge. "Children," said the teacher,"Don't worry, don't move 6 cry." Then she ran to the back of the children 7 the wolf should meet her first. The wolf came, and its mouth was widely open. When it passed the teacher, the wolf saw a boy. It stopped and wanted to snap (咬) at the boy. When the teacher 8 this, she put her right hand into the wolf's 9 quickly. The wolf was so frightened, and it 10 at once. When people heard of it, they all spoke highly of her bravery (勇敢). ( )1. A. singing ( )2. A. garden ( )3. A. to cry ( )4. A. Snake ( )5. A. running ( )6. A. or ( )7. A. too to ( )8. A. warned ( )9. A. ears ( )10. A. died B. sing B. bank B. to shout B. Dog B. joining B. yet B. so that B. seemed B. body B. fell overC. sang C. village C. not to cry C. Bear C. arriving C. so C. as well as C. saw C. legs C. fell down D. to sing D. bridge D. to meet D. Wolf D. standing D. for D. as long as D. watched D. mouth D. ran away 查看答案
题型：单项选择题 下列关于根毛的叙述中，正确的是（ ）A．根毛是根发霉之后长出的白色“绒毛”B．根毛可增大根吸水的表面积，提高吸水效率C．根毛的数量很少，根毛又很细，所以对吸水没有什么作用D．根毛位于根的成熟区，是由分生区细胞直接分裂而来的 查看答案
题型：单项选择题 关于消化性溃疡的临床症状，不正确的是（）A.胃溃疡多为餐后疼痛B.十二指肠溃疡多为空腹和夜间疼痛C.消化性溃疡患者均有上腹疼痛D.十二指肠溃疡易发展为穿透性溃疡E.球后溃疡诊断常较困难，易发生大出血 查看答案
题型：单项选择题 如果商业银行对市场利率的上升和下降都不那么敏感，那么商业银行倾向于持有什么样的资产负债期限结构（）。A．将短期借款与短期贷款匹配B．资产和负债的期限结构比较平衡C．将短期借款与长期贷款匹配D．将长期借款与长期贷款匹配 查看答案