问题
单项选择题
皮肤内脏反射是皮肤感受器接受刺激后传入冲动通过什么途径达到内脏
A.轴突反射
B.感觉运动神经传送
C.交感、副交感神经纤维传送
D.感觉神经纤维的传入冲动进入脊髓一定节段,再经同节段的
E.感觉神经纤维的传入冲动进入脊髓一定节段,再经同一节段的内脏传入神经传至内脏
答案
参考答案:E
皮肤内脏反射是皮肤感受器接受刺激后传入冲动通过什么途径达到内脏
A.轴突反射
B.感觉运动神经传送
C.交感、副交感神经纤维传送
D.感觉神经纤维的传入冲动进入脊髓一定节段,再经同节段的
E.感觉神经纤维的传入冲动进入脊髓一定节段,再经同一节段的内脏传入神经传至内脏
参考答案:E
Have you ever planted a few trees on Tree Planting Day? Each year, millions of people, both 41.______, plant a lot of trees. But this may not be the best way to make your home a 42._____ place. Last week we visited a park in Hebei. We were 43._____ to find most of the trees had been burned. The workers told us that the trees 44._____ soon after they were planted because they weren’t watered well enough. 45._____ workers burned them and cleaned the place for 46._____ trees to be planted this year. 47.______ a card found in one of the dead trees, a student wrote,” I hope this tree will grow up with me to 48.______ the backbone (栋梁) of our country.” The workers said that the survival (存活) of the trees was really more important than 49.______ trees were planted. Some people in Beijing now have a new idea that they can donate (捐赠) some money and let professional (专业人士) plant and 50.______ the trees.
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