单项选择题
The tennis finals will be put off if it （）tomorrow afternoon.
A. rainsB. will rainC. were to rainD. was to rain
单项选择题 三种空调以去年为基期、今年为报告期的销售量指数为106％，销售额今年比去年增长8％，则( )。
单项选择题 考察总体中个别现象或个别项目数量变动的相对数称为( )。
单项选择题 They promised to release the hostage in exchange ______ fifty thousand dollars.A. withB. ofC. forD. between
