角、结膜重建的前提条件是()
A.切除眼表的坏死和肉芽肿样病变组织
B.异体或自体角膜缘移植
C.泪膜大致正常
D.羊膜移植、自体结膜移植
E.以上都不对
参考答案:C
叙述汽轮发电机组振动故障诊断的一般步骤。
The nurse is administering sublingual nitroglycerin (Nitrostat) to the client. Immediately afterward, the client may experience which of the following symptoms()
A. Nervousness or paresthesia.
B. Throbbing headache or dizziness.
C. Drowsiness or blurred vision.
D. Tinnitus or diplopia.