矩形风管边长大于或等于630mm和保温风管边长大于或等于800mm,其管段长度在( )以上均应采取加固措施。
A.0.8m
B.1.0m
C.1.2m
D.1.5m
参考答案:C
Which word of the following doesn't have the same stress as the others?
A. Spanish B. Accept C. Repeat
强调后天的学习作用及环境对心理发展的影响的学派,其代表人物包括
A.弗洛伊德(Freu
B.华生(Watso
C.贝克(Bec
D.罗杰斯(Roger
E.恩格尔(Enge