单项选择题
A.5.1‰ B.6.8‰ C.5.O‰ D.6.67‰
A.48.3 B.51.7 C.106.9 D.93.5
A.普查 B.抽样调查 C.重点调查 D.典型调查
A.0.75 B.0.25 C.1.25 D.1.75
A.0.33 B.0.67 C.1.33 D.1.67
A.O.95 B.0.05 C.1.05 D.1.95
A.2.6 B.2.72 C.3.5 D.1.76
A.20% B.10.57% C.20.57% D.57%
A.3% B.3.09% C.4.29% D.一4.11%
A.31.58% B.68.42% C.64% D.24%
A.550亿元 B.1540.43亿元 C.一1662.53亿元 D.一1540.43亿元