- 卤代烃
- 共1238题
I suppose that they do not have a clear idea who ______ the story.
A.originated
B.generated
C.manufactured
D.estimated
正确答案
A
解析
暂无解析
Whenever I am in trouble, he is sure to help me out. I've ______
A.never met a kind man
B.ever met a kind man
C.ever met the kindest man
D.never met a kinder man
正确答案
D
解析
这句话在意思上等于:“He is the kindest man I've ever met.” (他是我所遇见过的最好的人。)这句话体现了比较级和最高级之间相互转换的关系。再如:I've never seen a better film than this one.可转换为:This is the best film I've ever seen.其他几个选项意思上都不对。
The coach didn't just want to win the match, but wanted his team to ______ their opponents by at least three to nil.
A.win
B.strike
C.repel
D.overwhelm
正确答案
D
解析
暂无解析
COPD合并II型呼吸衰竭的患者,拟给予鼻导管吸入29%的氧,其氧流量应为
正确答案
解析
吸入氧浓度(%)=21+4X氧流量(L/min)
心搏骤停最重要的诊断依据是
正确答案
解析
下列体征有助于立即判断是否发生心脏骤停:意识丧失,颈、股动脉搏动消失,呼吸断续或停止,皮肤苍白或明显发绀,如听诊心音消失更可确立诊断。以上观察与检查应迅速完成,以便立即进行复苏处理。心音消失表明心跳停止,其余选项是心跳骤停后可能会发生的症状,故排除。
扫码查看完整答案与解析