—I think teenagers should be allowed to make their own decisions when they have problems at school.
—_______. They're not calm enough, after all.
A:I agree
B:I disagree
C:I think so
D:I'm sure
按照1美元兑换人民币6.31元,美国籍教师安迪在中国工作,每月工资4000元人民币,到银行兑换多少美元?(保留两位小数)
读地质大循环示意图(图中序号表示地质作用),完成下列问题。