问题
选择题
_____is expected, according to the online survey, is that house prices will not go up any more. [ ]
A. As
B. It
C. Which
D. What
答案
答案:D
_____is expected, according to the online survey, is that house prices will not go up any more. [ ]
A. As
B. It
C. Which
D. What
答案:D
已知X、Y在一定条件下发生反应,可以得到E、F、G。下列假设与结论能对应成立的是
选项 | 假设 | 结论 |
A | 若X、Y均为固体,E为气体 | 则E一定能使湿润的蓝色石蕊试纸变红 |
B | 若该反应是氯碱工业的主要反应,反应一段时间后 | 两极产生的气体体积可能不同(不考虑气体的溶解) |
C | 若X为单质,Y为氧化性酸,气体E是能引起酸雨的主要物质 | 则Y一定是浓H2SO4 |
D | 若X为有机物,得到E是一种红色沉淀 | 则X一定是醛 |