在“驰骋常人之域，故有一切之寿”中，“一切”的意义是（）
A.所有
B.全部
C.普通
D.寻常
E.正常
参考答案：C
Though he is still a child, he has already read _____ 1,000 books.
A．so much as
B．as many as
C．as much as
D．so many as
山东省济南市某中学有一环保小组对一有大量浮游植物的湖泊，从上游①到下游②，进行溶解氧量(DO)、生化耗氧量(BOD)、无机物(N、P)的浓度进行调查，其结果有可能的统计图是
