在电信网管理(TOM)的基本构件信息框架中销售和市场管理域的功能是什么?
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爱情是一种重要的精神幸福。
A. 正确
B. 错误
厅门与门套及两厅门之间的间隙应为()
A. 4~6mm
B. 5~8mm
C. 5~7mm
D. 4~8mm
A shipmate chokes suddenly,cannot speak,and starts to turn blue. You should().
A. perform the Heimlich maneuver
B. make the victim lie down with the feet elevated to get blood to the brain
C. immediately administer CPR
D. do nothing until the victim becomes unconsciou