若24小时后发热仍不退,应采取
A.肠外营养液中增加胰岛素
B.用抗生素
C.胸腔穿刺抽气
D.拔除中心静脉导管
E.更换中心静脉导管
参考答案:B
. There was terrible noise ___________ the sudden burst of light.
A.followed
B.following
C.to be followed
D.being followed
如图7所示,开关S闭合时,可能发生的现象是( )
A.L1被烧坏
B.L2不发光,L1发光
C.电池被烧坏
D.L2被烧坏