【单选题】关于气管的描述错误的是:
B.
气管位于食管前方,上端在第 4 颈椎体下缘高度借韧带连于喉
D.
气管的后壁缺少软骨,由弹性纤维和平滑肌封闭,称膜壁
【单选题】Why does the author mention the psychological condition of the driver in Paragraph 2?
A.
To give an example of the various reasons for road accidents.
B.
To show how important it is for drivers to be emotionally healthy.
C.
To show some of the inaccurate estimations by researchers.
D.
To illustrate the hidden tensions in the course of driving.
【单选题】What has left many L.A. murals in terrible condition?
【简答题】S1:MV Helper,this is MV Blue Whale.Are survivors in good condition? Over.S2:MV Blue Whale,this is MV Helper.Survivors in bad condition. Over.Q:What's the condition of the survivors?A. good. B. quite g...
【判断题】Keep your shoes in good condition.