Jack was born ___________ May 5th, 1980.[ ]
A. in
B. at
C. on
D. /
答案：C
灭菌后的治疗巾包打开后，剩余的治疗巾有效期为
A．＜4h
B．＜12h
C．＜24h
D．＜36h
E．＜48h
舌骨上肌群不包括（）
A.胸锁乳突肌
B.下颌舌骨肌
C.二腹肌
D.茎突舌骨肌
E.颏舌骨肌
