“向_______同志学习。憎爱分明的阶级立场，言行一致的革命精神，公而忘私的 * * 主义风格。奋不顾身的无产阶级斗志。”的题词中的空格处应为[ ]

A．雷锋

B．欧阳海

C．罗盛教

D．齐白石

26. How long do you think ________ the computer company brings out a new product?

A．it will be before

B．will it be until

C．will it be when

D．it will be that