腰椎间盘突出时,病人肌力下降占()
A.50%~55%
B.60%~65%
C.70%~75%
D.80%~85%
E.90%~95%
参考答案:C
She’s ___ to be a teacher when she ___ her studies.[ ]
A. goes, finishes
B. going, finishes
C. go, finish
D. going, will finish
某污水处理工程采用罗茨鼓风机曝气,为降低罗茨风机及其风管辐射至厂界的噪声,可以采用的方法有______。
A.风管与风机间采取软连接
B.风机加装隔声罩
C.风机进气口安装消声器
D.风管外侧阻尼包扎