A.Auditing審計
B.Identification識別
C.Authorization授權(quán)
D.Authentication鑒別

A.the optical unit must be positioned so that the sun does not shine into the aperture.光學設備必須被定位以便使太陽照進光圈
B.there is are latively high rate of false accepts.有一個相對較高的錯誤接受率。
C.the iris pattern changes as a person grows older.虹膜圖案隨著一個人年齡的增長而變化。
D.concern that the laser beam may cause eye damage.關(guān)注激光束可能會導致眼睛損傷。