卫生间防水保修期达五年，必须保证防水层的耐久性。施工时必须（）。 A.保证使用合格的 发布时间：2019-02-10 22:06 │ 来源：www.tikuol.com 题型：多项选择题 问题： 卫生间防水保修期达五年，必须保证防水层的耐久性。施工时必须（）。A.保证使用合格的防水材料B.确保防水层的厚度C.保证不积水D.保证防水节点的可靠有效
题型：多项选择题 阅读理解。Huaihua Foreign Language SchoolLi Nan Teacher of EnglishYingfeng Street, Huaihua, ChinaTel: 0745-2709348 Fax: 0745-2709456E-mail: Lian@21cn.com BP: 1270822018 Zip Code(电码、代码): 418000Red Star FarmZhang Hui FarmerShangping Village, Zhejiang 419100Tel: 0571-6826194 13973098479 (mobile)BP: 1270803706Daqing Children's HospitalLiu Hong Doctor12 Xingling Road, Changchun, Jilin 130027Tel: 0431-564597213704358529 (mobile)Fax: 0431-5768904E-mail: cclh@163.comTiantai Taxi CompanyYang Jun Driver235 St. Tongzhi, Hangzhou, Zhejiang 31007Tel: 0571-7038385 Fax: 0571-7065834E-mail: hzyj@163.comBP:19923016361. We can learn English from ____________.A. Yang Jun B. Zhang Hui C. Liu Hong D. Li Nan2. You may telephone ____________ for help if your younger brother or sister is ill.A. Yang Jun B. Liu Hong C. Li Nan D. Zhang Hui3. We can call ___________ when we want to take a taxi to the Hangzhou Railway Station.A. 13973098479 B. 0745-2709348 C. 1992301636 D. 137043485294. Of the four, we can't send a fax to the _____________.A. driver B. teacher C. doctor D. farmer5. If you have any questions about your younger brother's or sister's health, please send an E-mail to _____________.A. Linan@21cn.com B. cclh@163.com C. hzyj@163.com D. hhmx@163.com 查看答案
题型：多项选择题 按照《线路保养质量评定标准》规定，轨道几何尺寸出现下列（）情况，每处扣41分。A.轨距变化率大于1/1000 B.超过经常保养容许偏差管理值 C.钢轨折断未及时永久性处理 D.轨道几何尺寸超过临时补修容许偏差管理值 查看答案