问题
单项选择题
声像图上胃壁五层结构的最内层代表（）。
A.粘膜肌层
B.粘膜下层
C.肌层
D.浆膜层及其界面回声
E.以上都不是
答案
参考答案：E
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声像图上胃壁五层结构的最内层代表（）。
A.粘膜肌层
B.粘膜下层
C.肌层
D.浆膜层及其界面回声
E.以上都不是
参考答案：E
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| Everyone 1 to live in a clean and comfortable environment. If the environment is 2 , it will make us not 3 well. Sometimes we may be terribly ill. At that time we don't want to 4 , we have to stay in bed and rest at 5 . So the environment is very important 6 us. It is germ that makes us ill. There are germs everywhere. They are very small and we can't 7 them with our own eyes. To keep us 8 , we should try our best 9 our environment become cleaner and tidier. This needs us to act 10 . | ||||
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