25．----Why don’t we choose that road to save time?

　　----The bridge to it _________.

A．has repaired

B．is repaired

C．is being repaired

D．will be repaired

黏液血便，右下腹扪到直径为6em的大包块，质硬，不规则，应首选哪项检查

A．B超

B．灌肠气钡双重对比造影

C．CT

D．胃肠钡餐透视

E．乙状结肠镜检查