混凝土结构质量缺陷的修补方法主要有()
A.拆除重浇混凝土
B.表面抹浆修补
C.不处理
D.细石混凝土填补
E.水泥灌浆与化学灌浆
参考答案:B, D, E
“The day is coming ________ telegraph wires will be laid on to houses like water or gas.” Bell wrote to his father.
A.when
B.that
C.in which
D.on that
多见胃肠道反应
A.异烟肼B.链霉素C.对氨基水杨酸D.乙胺丁醇E.吡嗪酰胺