【简答题】如图为缩手反射的神经传导途径.请据图回答问题: (1)手碰到针刺后会出现______,这种反应是神经调节的基本方式,完成该反应的神经结构叫______,该反应是______(“生来就有”/“后天形成”)的. (2)如果用“→”表示神经冲动的传导方向,请你试着将该反射弧补充完整:[3]感受器→[2]传入神经→[1]______→[4]传出神经→[5]______. (3)手缩回后,才感到疼痛,感受疼...
【简答题】With more and more cars on the road, traffic jams are inevitable. Traffic jams can lead to increased accidents as there are more cars, with more people trying to get to their destination, all the whil...
【判断题】在实际编程中,do-while循环完全可以用for循环替换。
【简答题】类的具体表现是通过定义(),即类的变量来操作的。
【简答题】____是指材料在恒应力作用下,塑性应变随时间不断增加的现象。
【简答题】A.New traffic rules. B.Traffic jams on highways. C.Air traffic conditions. D.Road conditions.