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【单选题】
某空调水系统如图所示，其中的水泵扬程30m，问：按相关规定进行水压(强度)实验时，示图中的压力表哪一个读数是正确的？(按10m水柱为0.1MPa)
A.
1.35MPa
B.
1.8MPa
C.
0.9MPa
D.
1.7MPa
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