【正确答案】 B

【答案解析】[解析] 本句意思是“中世纪的建筑物上很少用到水泥”。seldom“很少，不常”，例如，The apple tree is seldom fruitful．这棵苹果树很少结果。crudely“粗糙的”，Crudelyprogramming children to make the right responses．很粗略地训练孩子们自发地作出正确的反应。rarely“很少，难得”，例如，I rarely have short drinks我很少喝烈性酒。originally“原来的”，例如，I had a notion that she originally came from Poland．我有个想法认为她的原籍是波兰。symbolically“象征性的”，例如，He just said something symbolically at the farewell party．他只在欢送会上象征性地讲了些话。只有选项A与seldom含义相近。