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【多选题】
(2020· 广西钦州一中模拟 ) 调查法是生物学研究常用的方法之一,下列关于调查实验的说法正确的是 ( )
A.
调查草原上老鼠的种群密度,可用标志重捕法进行调查
B.
调查农田生态系统的能量流动情况,不需调查该生态系统生产者的主体和种类
C.
若调查人类红绿色盲的发病率,需要在人群中随机取样
D.
调查昆虫卵和跳蝻的种群密度,可以用样方法
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举一反三
【单选题】听力原文:M: You seem to stay late last night. Do you get yourself enough sleep every night? W: I dream of it. But I am often kept busy around the house almost every night? Q: Why can't the woman go to sle...
A.
Because she goes to work near her house.
B.
Because she likes to stay late.
C.
Because she dreams a lot every night.
D.
Because she is busy at home.
【单选题】白细胞分类计数的正常值以下哪项是错误的
A.
中性白细胞0.50~0.70
B.
淋巴细胞0.20~0.40
C.
嗜酸性粒细胞0.03~0.055
D.
单核细胞0.03~0.08
E.
嗜碱性粒细胞0~0.01
【简答题】在我国现阶段,下列收入中属于按劳分配所得的有( )。
【判断题】科学创新主要表现在研究领域的拓展和研究国界的突破
A.
正确
B.
错误
【单选题】在我国现阶段,下列收入中属于按劳分配所得的有( )
A.
国有企业职工的奖金和津贴
B.
个体劳动者的劳动收入
C.
三资企业工人的工资
D.
企业承包经营者的年薪
【单选题】听力原文:M: You seemed to stay up late last night. Do you get yourself enough sleep? W: I dream of it. But I am often kept busy around the house almost every night. Q: What can we learn about the conversa...
A.
She often dreams a lot at night.
B.
She goes to work every night.
C.
She likes to stay up late.
D.
She is busy with housework.
【判断题】(9)对于一个已定的计算公式,其系数不会随其公式中的变量单位的不同而变化
A.
正确
B.
错误
【简答题】How do you remember the way to your house ?where do deams come from ? it is your brain that does these things. A British scientist showed that "sleep can improve one's memory". It's not a dream for st...
【简答题】电子就有波动性和 性,即波粒二象性,是一切微观粒子具有的共性。
【单选题】听力原文:M: You seemed to stay up late last night. Do you get yourself enough sleep? W: I dream of it. But I am often kept busy around the house almost every night. Q: What can we learn about the conversa...
A.
She often dreams a lot at night.
B.
She likes to stay up late.
C.
She goes to work every night.
D.
She is busy with housework.
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