I will take some ____(土特产),such as Beijing Roast Duck.
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2.革兰阴性菌脂多糖在()
A. 细胞膜上
B. 磷壁酸上
C. 肤聚糖层上
D. 外膜上
E. 在脂蛋白上
We usually ____(庆祝) the Lantern Festival by eating Tangyuan, making and hanging lanterns.
The ____(寒假) is coming. I want to visit my grandfather.
Chinese people eat ____(饺子) during the Spring Festival.