1岁婴儿正常呼吸次数是()
A.45~40次/分钟
B.40~30次/分钟
C.30~25次/分钟
D.25~20次/分钟
E.20~18次/分钟
参考答案:B
找出与句中画线部分意义相同或相近的选项。
1. She has many shoes.
A. a lot of
B. much
C. a lot
D. any
2. How much are the black pants?
A. What about
B. What color are
C.What's the price of
D. How many are
3. I eat chicken and tomatoes for dinner.
A. get
B. have
C. buy
D. need
4. I want to buy a bag.
A. take
B. need
C. know
D. help
5. This shorts are nice. I'll buy them.
A. like
B. sell
C. take
D. get
患者男性,44岁。因患肝硬化、门脉高压症,突然一次大量呕血。患者表清淡漠,口渴明显,面色苍白,皮肤湿冷。呼吸浅快。考虑出现低血容量休克。
关于该患者微循环病理生理变化的叙述,正确的是()
A.回心血量减少
B.心排出量下降
C.乳酸类产物蓄积
D.毛细血管通透性增强
E.毛细血管静水压升高
F.动静脉短路和直捷通道大量开放
G.毛细血管前扩约肌收缩,后扩约肌相对开放