下列符合致病性大肠杆菌肠炎特点的是()
A．为稀水样大便
B．常有脓血便
C．常有脱水、酸中毒
D．大便有腥臭味
E．秋季高发
参考答案：A, C, D
3．_________last year, the number of people traveling this holiday weekend is expected to increase slightly.
A．Being compared to
B．Comparing to
C．Compared with
D．Comparing with
构成宇宙本源的是（）
A.天气
B.地气
C.阳气
D.阴气
E.精气
