问题
填空题
除有特殊规定外,建筑排水用硬聚氯乙烯(PVC-U)管材和管件检测应当在温度()℃条件下对试样进行状态调节()h,并在同样条件下进行试验。
答案
参考答案:23±2;24
除有特殊规定外,建筑排水用硬聚氯乙烯(PVC-U)管材和管件检测应当在温度()℃条件下对试样进行状态调节()h,并在同样条件下进行试验。
参考答案:23±2;24
根据句意,用方框内词汇填空,使句子完整、正确. | |
2. As the monitor, you must do your _______ and report the truth to the teacher. 3. We found the holiday ________ because of the bad weather. 4. It's not polite to ______ others in trouble. 5. Many students have to _______ the meaning of this word in the dictionary. |