问题
单项选择题
食管测压，当食管下括约肌，（LES）静息压降底至下列何种程度以下易导致胃食管反流（）
A.食管下括约肌（LES）静息压<20mmHg
B.食管下括约肌（LES）静息压<40mmHg
C.食管下括约肌（LES）静息压<10-30mmHg
D.食管下括约肌（LES）静息压<6mmHg
E.食管下括约肌（LES）静息压
答案
参考答案：D
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食管测压，当食管下括约肌，（LES）静息压降底至下列何种程度以下易导致胃食管反流（）
A.食管下括约肌（LES）静息压<20mmHg
B.食管下括约肌（LES）静息压<40mmHg
C.食管下括约肌（LES）静息压<10-30mmHg
D.食管下括约肌（LES）静息压<6mmHg
E.食管下括约肌（LES）静息压
参考答案：D
| 从方框中选择正确选项，补全对话（其中有两项多余）。 | |
| Reporter: 1 You just won the first prize in the State Tennis Competition. Tom：Thank you. Reporter: Tom, how old are you? Tom：Seven. Reporter: Seven ！ 2____ Tom：Since l was three. Reporter： 3 Tom: My father. And I take private lessons, too. Reporter： 4 Tom: Yes, I've taken lessons here for two years. Reporter :How many days a week do you play? Tom: About three or four.1 want to play every day but my parents say three or four hours is enough. Reporter: Are you going to continue with your tennis? Tom：Uh-huh. 5 Reporter: Wish you greater success! Tom：Thanks.
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