题目

Like every dog, every disease now seems to have its day. World Tuberculosis (infections disease in which growths appear on the lungs) Day is on Saturday March 24th.Tuberculosis was once terribly fashionable. Dying of “consumption” seems to have been a favorite activity of garret-dwelling 19th-century artists, has, however, been neglected of late. Researchers in the field never tire of pointing out that TB kills a lot of people. According to figures released earlier this week by the World Health Organization, 1.6 million people died of the disease in 2005, compared with about 3m for AIDS an下列关于种群数量变化的叙述，错误的是A．种群数量的变化包括增长、波动、稳定和下降等 B．种群数量的变化主要是由迁入率和迁出率、出生率和死亡率引起的 C．在自然界中，种群的增长一般是“J”型曲线 D．在自然界中，种群的增长一般是“S”型曲线