She asked _____ we were getting on well with our work.
A.how
B.if
C.what
D.that
答案:B
某一高层建筑,某日发生火灾,火场燃烧面积为600m2,若灭火用水供给强度为0、15L/s•m2,火场实际用水量为多少L/s。()
A、40
B、60
C、90
D、400
慢性硬脑膜下血肿的CT表现特征是()。
A.新月形稍低密度灶
B.新月形高密度灶
C.梭形高密度灶
D.脑内高密度灶
E.骨板下圆形高密度灶