下行上给式系统可利用最高配水点放气，当入户支管上有分户计量表时，应在各供水立管顶设自动排气阀。
参考答案：对
.The businessman asked a much ______ price than ______.
A．high, expecting
B．higher, expecting
C．higher, expected
D．more expensive, expected
下列国际组织中，主要宗旨是向成员国提供短期贷款以稳定国际汇率是
A B C D
