Most of his time in reading novels.
A.are spent
B.is spent
C.were spent
D.was spending
B
凡物体的长、宽、高三个度量都在变化时,应采用“( )”为计量单位。
A.m3B.m2C.mD.hm2
高致病性禽流感疫区内应采取哪些措施?