在园林水景营造和水体绿化中根据其生态习性、适生环境和生长方式,通常可以把水生植物分为()
A、二
B、四
C、八
D、十
参考答案:B
An analyst gathers the following information about the 2009 actual results for a company and its projected sales, cost of goods sold, and assets for 2010:()
A.1360000
B.1980000
C.1890000
车钩在闭锁状态时,钩舌销与销孔的间隙不大于()。
A.1.6mm
B.2.6mm
C.3.6mm
D.4.6mm