能抵抗病毒的感染,干扰病毒复制的细胞因子称为白介素。()
参考答案:错
You can find _________________ and ____________ [ ]
A two kilos of pork , three potatos
B some tomatoes , two kiloes of meat
C some fish , some carrots
D two boxes of egg , many beef
森林病害按病原浸染性不同分哪两类?