皮皮学，免费搜题
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A: What ’ s your size B: Can you give me a lower price C.What color would you like D: may have a look at the coat E: Could I pay by credit card F: How much is it A: May I help you, madam ? M: Yes,___ 1__ _ A: Sure,____ 2 ___ M: 3XXX. A:Well, ____ 3 __? M: I like the black one.May I try it on? A:Sure, here you are. And it costs 240 yuan. M: __ 4 ___ A:I ’ m sorry,It is the lowest price. M: ___ 5 _. I ’ ll take it. A:Certainly.Please pay at the cashier desk. M: Thank you
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皮皮学刷刷变学霸
举一反三
【简答题】强固胃粘膜屏障和消除Hp
【简答题】何谓胃粘膜屏障?
【单选题】有关胃粘膜屏障的叙述错误的是 ( )
A.
胃粘膜屏障损害是溃疡发生的病理基础
B.
胃粘膜屏障保护自身不受酸性胃液的消化侵蚀和食物中刺激因素的损伤
C.
细胞屏障指胃粘膜上皮细胞及细胞间结缔组织
D.
黏液屏障指覆盖于粘膜表面的酸性黏液
E.
以上均正确