— What is she afraid of?
— ______ in public. [ ]
A.To speak
B.Speaking
C.Speaks
D.Spoke
答案:B
超声波疗法中连续超声波固定法的治疗剂量是()
A.0.1~0.5W/cm2
B.0.5~1.0W/cm2
C.1.0~1.4W/cm2
D.1.5~2.0W/cm2
E.2.0~2.5W/cm2
对嵌岩灌柱桩钻芯孔的深度要求()
A.钻芯孔进入桩底以下持力层深度不应小于1.0米
B.探明桩底以下3-5d桩径范围内的岩土性状
C.桩端以下3d桩径范围内无软弱夹层,断裂破碎带和洞隙分布,无岩体临空面