急性腹膜炎出现眼窝凹陷、四肢发冷、呼吸急促、脉细数微弱、血压下降表示有()
A.感染性休克
B.心、肺功能衰竭
C.重度缺水
D.代谢性酸中毒
E.MODS
参考答案:A, C, D
回答问题。
1. When do you usually get up in the morning?
_________________________________.
2. What's your favourite class at school?
3. What do you usually do on the weekend?
4. What's your favourite season in a year?
5. What do you usually do in that season?
6. When do you go to bed?
为了达到提高农作物产量的目的,农业生产中可以采取的措施有( )
①延长光照时间 ②合理密植 ③增加二氧化碳浓度 ④减少二氧化碳浓度.
A.①②
B.①②③
C.②③④
D.①②③④