皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【单选题】
Light travels at a speed which is about a million times faster than the speed of sound. In one second, light travels about 300,000km. But sound travels only 344m. You can get some idea of this difference by watching the start of a race. If you stand some distance away from the starter, you can see smoke comes from his gun before the sound reaches your ears. This great speed of light gives us some strange facts. Sunlight takes about 8 minutes to reach us. If you look at the light of the moon tonight, remember that the light left the moon 1.3 seconds before it reached you. The nearest star is so far away that the light which you can see from it tonight started to travel towards you four years ago at a speed of nearly 2 million km per minute. In some case, the light from one of tonight's stars started on its journey to you before you were bola. Thus, if you want to be honest, you cant say' The stars are shining to night'? You have to say 'The stars look pretty. They were shining four years ago but their light has just reached Earth'. Sunlight seems to ______ than the light of the moon.
A.
have to travel a greater distance
B.
move less quickly
C.
travel much quickly
D.
be less powerfull
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】杨某,男, 24岁,突然出现意识丧失,全身抽搐,眼球上翻,瞳孔散大,牙关紧闭,大小便失禁,持续大约3分钟,清醒后对发病过程全无记忆, 根据临床症状该诊断为癫痫, 该病人的急救处理是
A.
遵医嘱迅速给药,控制发作
B.
注意保暖,避免受凉
C.
急诊做 CT,查找病因
D.
安全护理,防止意外
E.
保持呼吸道通畅,防止窒息
【单选题】下列属于创新创业宏观环境的是( )
A.
人口性别
B.
替代产品的威胁
C.
企业文化
D.
产业竞争程度
【单选题】杨某,男, 24岁,突然出现意识丧失,全身抽搐,眼球上翻,瞳孔散大,牙关紧闭,大小便失禁,持续大约3分钟,清醒后对发病过程全无记忆 105.该病人的急救处理是( ) prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
遵医嘱迅速给药,控制发作
B.
注意保暖,避免受凉
C.
急诊做CT,查找病因
D.
安全护理,防止意外
E.
保持呼吸道通畅,防止窒息 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
【单选题】下列属于创新创业宏观环境的是()
A.
业文化
B.
代产品的威胁
C.
业竞争程度
D.
口性别
【简答题】该病人的急救处理是( )A. 遵医嘱迅速给药,控制发作 B. 注意保暖,避免受凉 C. 急诊做CT,查找病因 D. 安全护理,防止意外 E. 保持呼吸道通畅,防止窒息 (106-109题共用题干) 李某,女,29岁,近日出现四肢麻木无力,进行性加重1天就诊。发病前2周出现过腹泻,既往体健,身体评估:脑神经正常,双下肢肌力0级,双上肢肌力2级,四肢腱反射减弱,病理反射阴性,生命体征平稳。 106.首...
【单选题】疟疾潜伏期的长短主要取决于
A.
疟原虫种株的生物学特性
B.
感染疟原虫的数量
C.
感染疟原虫的方式
D.
机体免疫力
E.
感染疟原虫的时间
【单选题】疟疾潜伏期的长短主要取决于
A.
感染疟原虫的数量
B.
感染疟原虫的方式
C.
机体免疫力
D.
感染疟原虫的种株特性
【单选题】对该病人的急救处置,首先是()
A.
遵医嘱从速给药,控制发作
B.
注意保暖,避免受凉
C.
急诊做CT,查找病因
D.
安全护理,防止外伤
E.
保持呼吸道通畅,避免窒息
【单选题】上题题干, 该病人的急救处理是
A.
保持呼吸道通畅,防止窒息
B.
遵医嘱迅速给药,控制发作
C.
注意保暖,避免受凉
D.
急诊做 CT ,查找病因
E.
安全护理,防止意外
【单选题】下列属于创新创业宏观环境的是
A.
企业文化
B.
替代产品的威胁
C.
产业竞争程度
D.
人口性别
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题