区域大气污染物允许排放总量计算方法主要是()法。
参考答案:A-P值
—What happened to you on your way back to the hotel last night ?
—I lost my way in complete darkness and ,__________ things worse , it began to pour .
A.making
B.to make
C.having made
D.made
大豆灰斑病一菌丝体在()越冬。
A.茎秆中
B.土壤中
C.病残体
D.种子或病残体