问题
单项选择题
新生儿颌骨骨髓炎感染来源多为
A．医源性
B．血源性
C．腺源性
D．牙源性
E．损伤性
答案
参考答案：B
解析：此为新生儿颌骨骨髓炎特点之一。
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新生儿颌骨骨髓炎感染来源多为
A．医源性
B．血源性
C．腺源性
D．牙源性
E．损伤性
参考答案：B
解析：此为新生儿颌骨骨髓炎特点之一。
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| The marathon is a popular Olympic event. It is a very 1 race — 42.2 kilometers, and good 2 finish it in about two hours. Marathon is the name of a place in Greece. There is an old 3 about an important battle (战斗) at Marathon 2500 years 4 . The Greeks won the battle and their leader(领袖) was very excited. He shouted, "We must 5 a message to Athens(雅典) at once. It's a long way to Athens. 6 can take our message home to our people?" Pheidippides said, "I can! I want to do it. I can run 7 than all the other men!" Pheidippides ran as fast as he could to Athens. He shouted the 8 news to the Athenians, "We won! We won the battle!" Then he 9 to the ground. He was too tired and died. He was the 10 "Marathoner". | ||||
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