枕骨大孔疝的临床表现是
A．意识丧失B．中枢性呼吸衰竭C．同侧瞳孔散大D．双侧瞳孔缩小E．癫痫发作
参考答案：B
During the fire, he ______ people into groups which carried sand and water to throw onto the flames.
A．called
B．organized
C．made
D．planned
1980年4月15日发行的1元硬币的直径为（）mm。
A.30
B.22.5
C.25
