垃圾粪便无害化处理的卫生效果主要依据哪项指标?()
A.pH值
B.苍蝇孳生情况
C.温度
D.游离氨含量
E.寄生虫卵的死亡率和去除率
参考答案:E
克罗恩病最常见的腹痛部位()
A.左上腹
B.左下腹或脐周
C.右下腹或脐周
D.左上腹或脐周
E.下腹或脐周
The meeting was long and the speakers said ______nothing worth listening to.
A.nearly
B.almost
C.mostly
D.possibly