经口明视气管插管术最关键是（）
A.吸入纯氧，去氮给氧
B.应用足量肌松剂
C.消除咽喉反射气管插管反应
D.托起下颌
E.尽量显露声门
参考答案：E
根据句意及首字母提示完成句子。
1. Ed Smith has a great sports c_______. He has so many balls.
2. My father doesn't like playing sports. He only w_______ them on TV.
3.D_______he have a volleyball?
4. Peter p_______ soccer every day.
5. His grandmother h_______ a TV set in her room. She often(经常)watches TV.
办公室温度，应该控制在()。
A、18℃~20℃
B、20℃~25℃
C、25℃~28℃
D、27℃~29℃
