阀冷却系统设计需综合考虑()。
A.内冷水最高进出口温度
B.外冷水系统设计
C.阀厅最高温度限制
D.阀厅空调系统设计
参考答案:A, B, C, D
中国拥有大陆岸线18,000多公里。( )
A. China boasts a mainland coastline of more than 18,000 kg.B. China boasts a mainland coastline of more than 18,000 km.C. China boasts a mainland coastline of more than 1,800 km.D. China boasts a mainland coastline of 18,000 km.
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