当吸入气中CO2含量增加超过20%时()。
A.肺通气量增加3~4倍
B.肺通气量增加8~10倍
C.肺通气量不增加
D.兴奋呼吸
E.对呼吸中枢有麻醉作用
参考答案:E
四、单句改错,每题1分共5分:
1. He made a trick on her by taking all the money.
2. Now plastic can take place of steel in may ways in life.
3. She apologized the teacher for losing her book.
4. He didn’t turn down for some reason.
5. I was really anxious about you. You should have left home without a word.
下列各项中,作为会计职业道德教育的核心内容,并贯穿于会计职业道德教育始终的是()。
A.会计职业道德观念教育
B.会计职业道德规范教育
C.会计职业道德警示教育
D.其他相关教育