食物和气体的共同通道是( )  A.食道    B.气管    C.咽    D.喉

食物和气体的共同通道是( )

  A.食道    B.气管    C.咽    D.喉

 

答案

C

解析:咽是呼吸道和消化道的共同器官,是食物和气体的共同通道。

 

相关题目

下列各句中,没有语病的一句是 A. 《中国人最易读错的字》
下列各句中,没有语病的一句是 A. 《中国人最易读错的字》一书选取近200个中国人最易读错的字,除了从语音的正误方面做出判断外,还对读错的原因
    Every human being has a unique arrangement of the skin on his fingers and
    Every human being has a unique arrangement of the skin on his fingers and this arrangement is unchangeable. Scientists and experts have proved the uniqueness of finger-prints and discovered tha
Both of Jessica’s parents were lawyers and expected her to follow suit. So sh
Both of Jessica’s parents were lawyers and expected her to follow suit. So she went to law school, got a job at a great firm in Washington, DC, and worked as a lawyer for a decade. But her heart
(6分)电磁打点计时器是一种使用交流电源的计时仪器,当
(6分)电磁打点计时器是一种使用交流电源的计时仪器,当电源的频率为50Hz时,振针每隔       s打一个点.现在用打点计时器测定物体的速度,当
(11·西宁)如图8,在6×6的方格纸中(共有36个小方格),每
(11·西宁)如图8,在6×6的方格纸中(共有36个小方格),每个小方格都是边长为1的正方形,将线段OA绕点O逆时针旋转得到线段OB(顶点均在格点上),
下列各组给定原子序数的元素,不能形成原子数之比为1∶1稳
下列各组给定原子序数的元素,不能形成原子数之比为1∶1稳定化合物的是A.3和17     B.1和8       C.1和6       D.7和12 
 They decided ____________ by bus.    A. to go to there       B. to g
 They decided ____________ by bus.    A. to go to there       B. to go there       C. going there     D. going to there
我国的航母正按计划进行各项科研试验和训练。如上右图所
我国的航母正按计划进行各项科研试验和训练。如上右图所示是中国航母“瓦良格”号训练时的图片。当飞机飞回航母后(   ) A.航母将浮起一些,

最新题目