著名诗人刘长卿诗作杰出，曾自许为( )
A．“十才子”之冠
B．“江南才子”
C．“五言长城”
D．“七绝圣手”
参考答案：C
供应直肠肛管的动脉中最主要是
A．直肠上动脉
B．直肠下动脉
C．闭孔动脉
D．骶小动脉
E．阴部内动脉
He was about to tell me the secret_____ someone patted him on the shoulder.
A．as
B．until
C．while
D．when
