Thanks for __________ this radio show.[ ]
A. finding
B. finds
C. findes
D. findings
答案:A
— ________you read the story?
—Yes. I_____________it at school.
A.Have;read
B.Did;read
C.Have;haveread
D.Did;haveread
根据《建筑基坑支护技术规程》(DB11/489-2016)第5.7.5条,基坑开挖后,应及时对排桩的桩间土采取防护措施,可采用内置钢丝网或钢筋(板)网的喷射混凝土护面等处理方法,喷射混凝土面层的厚度不宜小于()mm,混凝土强度等级不宜低于()。
A.50;C15
B.50;C20
C.100;C15
D.100;C20