咽旁脓肿位于()。
A.咽后隙
B.椎前间隙
C.咽旁隙
D.下颌间隙
E.扁桃体周围间隙
参考答案:D
His teacher told him that since his parents were working abroad , either his grandparents or one of his uncles ______ allowed to come to the parents’ meeting .
A.was
B.were
C.are
D.is
对负荷试运行人员的基本要求有:培训已完成,各工种人员经考试合格,取得上岗证,达到( )。
A.三懂四会
B.四懂三会
C.三懂六会
D.三查四定