内窥镜腹壁整形术一般采取().
A、全麻
B、局麻浸润麻醉
C、局麻+镇静
D、硬膜外麻醉
E、局部神经阻滞麻醉
参考答案:A
放幻灯时,幻灯片应放在 [ ]
A.透镜的焦点以内
B.透镜的两倍焦距以外
C.透镜焦点以外的任一位置
D.透镜两倍焦距以内,一倍焦距以外
—Be careful, _____ you will make mistakes in your exam.
—I know that. Thank you. [ ]
A. and
B. or
C. nor