加强税源分析与税源动态监控，按照（）、时限等对所辖税源实施结构分析监控。
A.地区
B.行业
C.企业
D.税种
参考答案：A, B, C, D
脑组织中灰质血流量与白质血流量的关系（）。
A.白质血流量是灰质血流量的2倍
B.灰质血流量是白质血流量的2倍
C.白质血流量是灰质血流量的3～4倍
D.灰质血流量是白质血流量的3～4倍
E.白质血流量是灰质血流量的1倍
To his satisfaction, he got _____ people voting for him as he thought. [ ]
A. twice more
B. as twice many
C. twice as many
D. more than twice
