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【单选题】
—Why is surface subsidence most serious in this area? —Because large quantities of underground water______.A.
have pumped out
B.
is being pumped out
C.
has been pumped out
D.
have been pumped out
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】下列表述不正确的是( )。
A.
净现值＞0时，说明该投资方案可行
B.
净现值=0时的贴现率即为内含报酬率
C.
净现值是特定方案未来现金流入现值与未来现金流出现值之间的差额
D.
净现值＞0时，现值指数小于1
【单选题】--- I ______ to be here on time. --- But you ______ late again.
A.
meant; are
B.
meant; had been
C.
have meant; were
D.
have meant; are
【简答题】是指对客户来说什么是有意义的,即对客户真实需求的深入描述
【简答题】I meant to go running this morning , but I overslept.