可能产生不均匀沉降的建筑物或门窗洞口尺寸较大时，应采用（）过梁。
A.砖砌平拱
B.砖砌弧拱
C.钢筋砖
D.钢筋混凝土
参考答案：D
The teacher suggested that the dictionary ______ at once .
A．be referred to be bought
B．be referred to being bought
C．referred to being bought
D．referred to be bought
以下哪一个选项不是教育督导的特点：（）
A.督导工作的执法性
B.督导对象的广泛性
C.督导内容的综合性
D.督导作用的直接性
