A.胃液的酸度较高而酶含量低 B.胃液的酸度较高而酶含量更高 C.胃液的酸度低而酶含量也低 D.胃液的酶含量较高而酸度低 E.胃液的酶含量较高而酸度更高 头期胃液分泌的特点是 ( )

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问题 A.胃液的酸度较高而酶含量低   
B.胃液的酸度较高而酶含量更高
C.胃液的酸度低而酶含量也低   
D.胃液的酶含量较高而酸度低
E.胃液的酶含量较高而酸度更高
头期胃液分泌的特点是    (    )

选项 A、 
B、 
C、 
D、 
E、 

答案B

解析
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