生物防治包括哪些方面？
参考答案：
①以虫治虫
②以菌治虫
③以激素治虫
④以鸟、螨类治虫
⑤以菌治菌等
组成并接体
A．SnRNAB．hnRNAC．45s-rRNAD．53-rRNAE．mRNA
His house was burnt________the ground due to the big fire, ________ made him homeless.
