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標題:

問BIO 1998 CE MC Q.5 and Q.9

發問:

問BIO 1998 CE MC Q.5 and Q.9 可唔可以解釋下個答案點黎?

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最佳解答:

Q.5 Anwer: D Besides being able to prevent the rubbing of food against the wall of the stomach, the mucus also protects the inner surface of the stomach against the eroding of the hydrochloric acid and pepsin . Q.9 Answer :B Using a tooth brush with a larger head and brushing the teeth harder do not prevent tooth decay .Avoiding sugary food is a good method but starchy food may also lead to tooth decay.The best method is thus brushing the teeth after meals. ?°o?°●╔╦╗ ╔╦╗ ╔╦╗ ╔╦╗○?°o?° ?°o?°○╠希╣.╠望╣.╠幫╣.╠到╣你 啦~● ?°o?° ?°o?°●╚╩╝ ╚╩╝ ╚╩╝ ╚╩╝○ ?°o? ∴☆ ╭╯╰╮ ﹒☆☆°．﹒☆?°∴°﹒°☆．

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