地面工程施工时,水泥混凝土垫层铺设在基土上,当气温长期处在哪种温度以下时应设置伸缩缝______
A.0℃
B.5℃
C.10℃
D.20℃
参考答案:A
Miss Sullivan clarified the science Project in Simple but vivid language so as to make it easier for teenagers ________.
A.understanding
B.to understand
C.understood
D.to be understood
白鲜皮不具有的功效是()
A.清热解毒
B.止痒
C.祛风
D.止痢
E.燥湿