题目内容

People eat Zongzi on ____(端午节) .

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We eat family reunion dinner on____(除夕)

Children can get ____(红包) from parents or relatives during the spring festival.

3．革兰阳性菌细胞壁的主要成分是()

A. 蛋白质
B. 脂蛋白
C. 肽聚糖
D. 磷壁酸
E. 脂多糖

4．细菌的核酸是()

A. RNA
B. mRNA
C. DNA
D. RNA或DNA
E. DNA和RNA