砖砌体基础顶面和楼面标高允许偏差为()。
A、-15
B、-10
C、+10
D、+15
参考答案:A, D
小儿推拿中,可开窍醒神的是()
A.掐人中
B.揉太阳
C.开天门
D.推七节骨
E.按腰俞
All engines in lifeboats and rescue boats shall be run for a total period of not less than()in weekly inspections.
A.2 minutes
B.3 minutes
C.4 minutes
D.5 Minutes