题型:问答题 简答题 苏云金杆菌能够寄生在多种农业害虫体内而使之死亡,当代农业利用其杀虫特性的主要原因是 [ ]A.苏云金杆菌的毒性大B.苏云金杆菌易繁殖 C.苏云金杆菌能够迷惑害虫D.苏云金杆菌能够减少化学药物带来的污染 查看答案
题型:问答题 简答题 It was a wonderful trip. So, which city did you like better, Paris or Rome?---(). There were good things and bad things about them.A. It’s hard to sayB. I didn’t get itC. You must be kiddingD. Couldn’t be better 查看答案
题型:问答题 简答题 某项目现金流量见表3-1所列,基准收益率为12%,该项目财务净现值为()万元。表3-1 某项目现金流量 年份 0 1 2 3 4 现金流入/万元 0 100 100 100 100 现金流出/万元 200 20 20 20 20A.55.70B.140.00C.86.40D.71.06 查看答案