根据《液压爬升模板工程技术规程》，爬架导轨设计应具有足够的刚度，其设计长度不应小于（）倍层高。
A.2
B.1.5
C.1
D.0.5
参考答案：B
两宋词坛上创用词调最多的词人是（）
A.柳永
B.周邦彦
C.姜夔
D.张炎
Individuals may at various points in their fives experience discrimination in the allocation of resources either ______ of being too old or too young.
A. at the risk B. to the point C. in the ease D. on the ground
