第23题:[单选题]The revolution of machinery could __________without a new source of both movable and constant power in the new century. A.be born B.not have been born C.have been born D.have born 参考答案:B 考查虚拟语气。当从句中出现without/ but for 等词时,主句要用虚拟语气,根据句意,如果没有新能源,机械改革不会诞生,再结合整句话的时态,应该用could not have been born。
第30题: [单项选择]明龙骨饰面板的安装不符合的规定是( )。 A. 装饰吸声板的安装如采用搁置法安装,应有定位措施 B. 饰面板安装应确保企口的相互咬接及图案花纹的吻合 C. 玻璃吊顶龙骨上留置的玻璃搭接宽度应符合设计要求,并应采用硬连接 D. 采用搁置法安装时应留有板材安装缝,每边缝隙不宜大于1mm 参考答案:C