问题
单项选择题 B1型题
某犬在采食中突发吞咽障碍，流涎，干呕，烦躁不安；X线检查发现在胸腔人口前气管背侧有一不规则形状的高密度阴影。应实施（）。
A.疥螨病
B.脓皮症
C.蠕形螨病
D.马拉色菌病
E.犬小孢子菌感染
答案
参考答案：A
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某犬在采食中突发吞咽障碍，流涎，干呕，烦躁不安；X线检查发现在胸腔人口前气管背侧有一不规则形状的高密度阴影。应实施（）。
A.疥螨病
B.脓皮症
C.蠕形螨病
D.马拉色菌病
E.犬小孢子菌感染
参考答案：A
Just up the road from my home is a field, with two horses in it． From a distance，each horse looks like any horse． But if you get closer, you will 36 something quite interesting ——one of the horses is 37 ． His owner has chosen not to have him put down（杀死）, 38 has made him a safe and comfortable barn（马棚） to 39 ．This is pretty amazing． But if you stand nearby and listen，you will hear the sound of a 40 ．It is coming from a smaller horse in the field． 41 to the horse is a small bell． It 42 the blind friend know where the other horse is，so he can 43 ． As you stand and watch these two friends you'll see that the horse with the bell is always 44 the blind horse，and that the blind horse will 45 for the bell and then slowly walk to where the other horse is，trusting he will not be led the 46 way． When the horse with the bell returns to the shelter of the 47 each evening, he will stop 48 to look back，making sure that the blind friend isn't too 49 behind to hear the bell． Like the owner of these two horses，the kind people around us do not 50 us away just because we are not perfect or because we have 51 ．Sometimes we are the blind horse，being 52 by the little ringing bell of those who come to 53 us． And we are the guide horse 54 other times, helping others to find their 55 ．
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