A.8h;4h B.12h;6h C.16h;8h D.24h;8h
A.0.5兆歐 B.1兆歐 C.10兆歐 D.100兆歐
A.滿水和通水試驗 B.強度和嚴(yán)密性試驗 C.灌水試驗 D.水壓試驗