喷嚏时腰椎间盘突出症的腰腿痛会（）
A.加重
B.减轻
C.无变化
D.消失
E.明显减轻
参考答案：A
对于选定的细骨料应按批做常规检验。以同一产地连续进场不超过()为1批。
A.200m3(或300t)
B.300m3(或500t)
C.400m3(或600t)
D.500m3(或800t)
It was fine yesterday so I ______ the trouble to carry my raincoat with me.
A．don’t need to take
B．mustn’t have taken
C．didn’t need to take
D．needn’t have taken
