下颌骨骨折好发部位中,哪项可除外
A.颏孔区
B.髁状突颈部
C.喙突
D.正中联合部
E.下颌角区
参考答案:C
解析:喙突位置相对隐蔽,而上端又悬空,故不易受外力。
下列各句中加点的成语使用恰当的一句是( )
A.正因为科学是一把“双刃剑”,所以,先进的医疗技术既有可能解除病人的痛苦,同时也有可能对病人造成某种伤害。
B.机场附近山顶的大量无线发射台严重影响飞行安全,日前虽有一些已下山,但这对实现机场净空不过是九牛一毛。
C.就是千夫所指一片喊打的吃野味,也在某些地方悄悄地东山再起。
D.乐于助人本是无可厚非的,可是在有的人看来,这是一种迂腐。
()of the following statements is INCORRECT regarding a fire and boat drill on board your cargo vessel.
A.At least one fire and boat drill shall be held within 24 hours of leaving a port where more than 25 percent of the crew has been replaced
B.The Master is responsible in seeing that each lifeboat is lowered to the water at least once in each 6 months
C.Lifeboat equipment shall be examined at least once each month to insure that it is complete
D.An entry shall be made in the vessel's Official Logbook relative to each fire and boat drill