题目:
()means the level for which further specific protective security measures shall be maintained for a limited period of time when a security incident is probable or imminent, although it may not be possible to identify the specific target.
A.Security level 1
B.Security level 2
C.Security level 3
D.Highest safety level
答案:
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参考答案:B解析:翼状胬肉小而静止时一般不需治疗,进行性发展侵及角膜,可以进行手术治疗,但有一定的复发率。该患者为复发性胬肉,再次行单纯切除术后复发的可能性极高,联合羊膜移植、结膜移植或局部射线照射...