问题
单项选择题 A型题
电镜下能看出周期性横纹的结构是：（）。
A.神经原纤维
B.神经纤维
C.弹性纤维
D.胶原原纤维
E.平滑肌纤维
答案
参考答案：D
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电镜下能看出周期性横纹的结构是：（）。
A.神经原纤维
B.神经纤维
C.弹性纤维
D.胶原原纤维
E.平滑肌纤维
参考答案：D
In a land far away, once upon a time there was great poverty (贫困)， and only the rich could manage without great 36 . Three of those rich men and their servants were 37 together on a road when they came to a very 38 village. The first could not stand seeing the poverty, 39 he took all the gold and jewels from his wagons (四轮载重马车) and shared 40 out among the villagers. He wished them all the best of luck, and he left. The second rich man, seeing the 41 situation, stopped for a short time and gave 42 all his food and drink, since he 43 see that money would be of little 44 to them. He made sure that they each 45 their fair share and would have enough food to 46 for some time. Then, he left. The third rich man, on seeing such poverty, 47 and went straight through the 48 without stopping. The two other rich men saw this from a distance and commented with each other 49 the third rich man lacked sympathy. It was 50 that they themselves had been there to offer help. However, three days later, they 51 the third rich man, who was coming in the opposite direction. He was 52 travelling quickly, but his wagons, 53 the gold and valuables they had been 54 , were now full of farming tools and bags of 55 . He was rushing back to help them out of poverty.
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