有效心肺复苏(CPR)的标准中不包括以下哪一项
A.摸到大动脉搏动
B.皮肤颜色红润
C.瞳孔变小
D.收缩压回升至120mmHg以上
E.心跳恢复
参考答案:D
Has Jack finished his homework yet?
I've no idea, But he _____ it the whole afternoon. [ ]
A. would do
B. was doing
C. did
D. had done
理想的牙周手术后组织愈合的方式是()
A.新附着
B.再附着
C.长上皮结合
D.一般性修复
E.骨性愈合