搭笼护岸随水冲而达预定位置，如此由（）排列成笼坡。
A、上游而下游
B、下游而上游
C、左岸而右岸
D、右岸而左岸
参考答案：B
Most of the students feel nervous when they are reminded that it will be about half a year ____ they take
the national college entrance examination. [ ]
A. since
B. that
C. before
D. until
对债券基金的分析主要集中于对债券基金______与基金所持债券信用等级的分析。
A．规模 B．利率 C．数量 D．久期
