下列叙述错误的是{"A":"\u5236\u4f5c\u679c\u6c41\u65f6\u8981\u63d0\u9ad8\u679c\u8089\u51fa\u6c41\u7387\u548c\u964d\u4f

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下列叙述错误的是（）

A：制作果汁时要提高果肉出汁率和降低果汁的浑浊度等，只需加入果胶酶即可

B：果胶是植物细胞壁和胞间层的主要成分之一，不溶于水

C：植物、霉菌、酵母菌和细菌均能产生果胶酶

D：果胶酶是一类酶的总称，包括多聚半乳糖醛酸酶、果胶分解酶、果胶酯酶等

上一题下一题 0.0难度选择题更新时间:2016-05-19 06:06:49

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A

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根据短文内容，完成下面的任务。

Dear Grandma,

How are you? I am very busy this month. (A)September 5th is my good friend Gina's birthday. I will go to her birthday party in the evening. On the eleventh, (B)我有一个英语测试. On September 17th, I have a baseball game. You know I love baseball. On the 24th, I have a school trip. On the 28th, I'll go to Mr. Cool's Clothes Store. The clothes there are on sale that day. I want to buy a pair of sports shoes and a T-shirt. The hats there are very nice. I will buy one ① ________ you. Oh, Grandma, I'm very sorry I can't go to see you ② ________ my parents this month. See you next month.

Yours,

Eric

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