【名词&注释】
平均数(average)
[单选题]某生物种群波松分布的方差为V，平均数为m，且V
A. 成丛分布
B. 均匀分布
C. 随机分布
D. 群集分布
查看答案&解析
点击获取本科目所有试题
举一反三：
[单选题]下列各项叙述不符合严重感染的是( )
A. 白细胞总数增加
B. 中性粒细胞核左移
C. 淋巴细胞相对减少
D. 嗜酸性粒细胞明显增加
E. 中性粒细胞出现中毒颗粒
[单选题]
A. industryB． industrial
B. instruct
C. instruction
[单选题]下列关于微循环直捷通路的叙述，错误的是( )
A. 经常处于开放状态
B. 血流速度较快
C. 主要机能不是进行物质交换
D. 主要机能是使一部分血流迅速通过微循环而进入静脉
E. 在皮肤中较多见
[单选题]第 23 题 在全人口中，智力呈何种状态分布（ ）
A. 常态分布
B. 正偏态分布
C. 偏态分布
D. 负偏态分布
[单选题]在下列诗句中，使用了“赋”的表现手法的是( )
A. 于嗟鸠兮，无食桑葚
B. 淇则有岸，隰则有泮
C. 总角之宴，言笑晏晏
D. 桑之未落，其叶沃若
[单选题]The search engines work by means of _________.
A. arranging links to the Internet
B. submitting specific search term
C. updating a knowledge database
D. searching engine spiders
[单选题]Did you ever have someone's name on the tip of your tongue and yet you were unable to recall it? (21) this happens again, do not try to recall it. Do something (22) for a couple of minutes, and the name may come into your head. The name is there. Since you have met (23) person and learned his name. It only has to be dug out. The initial effort to recall (24) the mind for operation, but it is the subconscious (25) that go to work to dig up a dim memory. Forcing yourself to recall almost never helps because it doesn't loosen your memory; it only tightens it. Students find the preparatory method helpful (26) examinations. They read over the questions (27) trying to answer any of them. Then they answer first the ones (28) which they are most confident. Meanwhile, deeper mental activities in the subconscious mind are taking (29) ; work is being done on the more difficult question. By the time the easier questions are answered, answers to the more difficult ones will usually begin to (30) into consciousness. It is often just a question of waiting for recall to come to the memory.21.
A. Whether
B. When
C. While
D. As
[单选题]关于右主支气管的描述，下列选项正确的是 （ ）
A. 细长
B. 粗短
C. 异物不易坠入
D. 右肺动脉在其后方
E. 其前方有下腔静脉
本文链接：https://www.zhukaozhuanjia.com/download/eq60zq.html
