经流系数是指进入管渠的实际降雨量(径流量)与降雨量的比值,它常小于()。
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【C17】
A. numbers
B. amounts
C. figures
D. plenty
A novel about a boy's life is ______.
A. Les Miserables
B. Ulysses
C. Demian
D. A Farewell to Arms
【B9】
A. old
B. new
C. good
D. beautiful
Do you______newspapers after supper?
A. watch
B. look at
C. read