工业冷却水用量占工业用水总量的( )左右。
A．90%
B．20%
C．50%
D．80%
参考答案：D
When the news came ______ the war broke out, he decided to serve in the army.[ ]
A. since
B. which
C. that
D. because
非流动负债仅指偿还期在1年以上的负债，包括长期借款、应付债券等。( )
