题目

完形填空（共20小题，每小题1.5分， 满分30分） Last year, I was speaking at a gathering of wealthy male investors. The organizers posted the   36    of a survey showing that only a small percentage of wealthy men believed their wives spent too much. “What?”   37    one participant, “Those guys have to be lying.” There is no reliable   38    of who spends more among the rich: men or women. Both will say the other is the   39    spender. A recent survey by Wilmington Trust, Campden Research and Relative Solutions proves the   40   . The companies p（2015春•抚顺期末）下列叙述中，正确的是（ ）A．记忆细胞受抗原刺激后能产生大量的抗体B．淋巴细胞都能产生抗体C．有人常患流行性感冒是因为机体经常不能产生抗体D．浆细胞和T细胞都能产生免疫活性物质