题目

看日历,判断下列句子正误。 (1) Theschool trip is on May 5th. (2) We havea singing contest on June 1st. (3) MissLiu's birthday is on September 10th. (4) We havea maths test on November 3rd. (5) TheEnglish test is on December 4th. 答案:错误 错误 错误 错误 正确下列结构属于生物膜系统的是 ①线粒体内膜 ②叶绿体囊状结构薄膜 ③细胞壁④溶酶体膜 ⑤核糖体 ⑥核膜A.①②③④⑤⑥B.①②③④⑥C.①④⑥D.①②④⑥
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