根据句意，在答题卡标有题号的横线上，写出括号内所给单词的适当形式。

小题1:He is selfish. Though I have lent him much money, he seemed never ______ (满足的).

小题2:Millie’s car crashed into a tree yesterday, now she is still under ______ (治疗).

小题3:Compared with the new buildings, the old ones seem even _______. (丑陋)

小题4:Nobody is in the school. The students have ______(或许) gone for a school trip.

男性、43岁，因弯腰取物时突然出现腰部疼痛，并伴有右下肢的放射痛，既往有反复发作的腰痛病史，查体腰椎生理曲度消失，腰椎活动受限，腰¨椎间隙右侧旁开1．5cm压痛并向右下肢放射，右下肢皮肤感觉同左侧无异常，右下肢直腿抬高试验阳性。

该病人明确诊断，危险性最小的辅助检查方法是（）

A.腰椎CT检查

B.腰椎X线片检查

C.腰椎B超

D.肌电图检查

E.脊髓造影