单项选择题
孔洞率大于25%，孔的尺寸小而数量多，主要用于承重部位的砖称为（）。
A．烧结多孔砖 B．灰砂砖 C．粉煤灰砖 D．水泥砖
单项选择题 The discrepancy in the company accounts is so ______that no auditor could have failed to notice it.
单项选择题 How about a glass of orange juice to ______your thirst
单项选择题 Because it symbolized strength, the oak was traditionally ______and had numerous mythological associations.
