使用局麻药,下列哪种情况易发生惊厥()
A.局麻药在安全剂量内
B.局麻药中加用肾上腺素
C.尽量使用低浓度局麻药
D.C02蓄积
E.辅助全麻药
参考答案:D
Eliza remembers everything exactly as if it ____ yesterday. [ ]
A. was happening
B. happens
C. has happened
D. happened
因儿童少年的眼调节功能较强,故弱视筛选对象首选择中学生。