第27题: [单项选择]背景:某大学图书楼大厅墙面基层为水泥砂浆面,按设计要求,采用多彩内墙涂料饰面,该涂料的特点:涂层无接缝,整体性强,无卷边和霉变,耐油、耐水、耐擦洗,施工方便、效率高。涂饰前作了技术交底,并明确了验收要求。验收时发现如下缺陷:流挂,不均匀光泽、剥落(呈壳状)、涂膜表面粗糙。内墙涂料施工时基层必须干燥,含水率应小于() A. 5% B. 8% C. 10% D. 12% 参考答案:C
第30题: [填空题]According to Dr. Collins, how to prevent those patents A. A.To stop clinical lab from doing diagnostic testing B.To order government labs to make every new gene discovery public knowledge C.To pass laws prohibiting private ownership of genome patents.