影响工矿区水土流失的3个因素()、人为、社会经济。
参考答案:自然
Australia is such a splendid country that we’ve decided to stay for _____ two weeks.
A.another
B.other
C.the other
D.other’s
肺痿咳吐浊唾涎沫的特点是()
A.唾呈细沫稠黏
B.痰稀呈泡沫状
C.或白如雪
D.痰吐腥臭
E.或带血丝