腹痛伴里急后重者多见于()
A.急性细菌性痢疾
B.伤寒
C.副伤寒
D.肠结核
E.Crohn病
参考答案:A
The hunter insisted that he _____ a tiger and that a searching team ______ to hunt for it.
A.has seen; be set up
B.had seen; be set up
C.saw; would be set up
D.should see; should be set up
生物型污染