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【单选题】
已知25~29岁健康女子怀孕时间长度(从末次月经到婴儿出生)近似正态分布,现调查100名25~29岁健康女子,得到其平均怀孕时间长度均数为280天,标准差为10天,参考值的上限是299.6天,下限是260.4天,这个参考值范围最可能是()
A.
单侧99%
B.
双侧99%
C.
双侧95%
D.
单侧95%
E.
双侧90%
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参考答案:
举一反三
【单选题】已知水的两种状态A(373K,101.3kPa,g),B(373K,101.3kPa,l),则与的关系为:()
A.
μ A =μ B
B.
μ A >μ B
C.
μ A <μ B
D.
两者不能比较
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【单选题】-Jack, let’s have a picnic after school. -Sorry. I have ______Frank to work on the biology report with him.
A.
advised
B.
expected
C.
suggested
D.
promised
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【简答题】根据以下信息,将 shopping list 填写完整。 A: Lily, tomorrow will be fine. Let’s have a picnic in Zhongshan Park, shall we? B: Wow, that sounds great! A: But we should prepare something for the picnic. Do you have ...
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【单选题】______ wonderful weather it is! Let’s have a picnic in Gu Cun Park this afternoon.
A.
How
B.
What
C.
What a
D.
What an
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【单选题】—Let’s have a picnic by the West Lake. —______.
A.
Never mind.
B.
That’s all right.
C.
Good idea.
D.
You’re lucky.
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【单选题】立体像对的绝对定向中观测值为:
A.
像点坐标
B.
地面点坐标
C.
模型坐标
D.
同名点上下视差
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【单选题】已知一元钱的边际效用为3个单位,一支钢笔的边际效用为36个单位,则消费者愿意用 ( )来买这支钢笔
A.
12 元
B.
36 元
C.
3 元
D.
108 元
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【单选题】373K ,101.3kPa的水向真空膨胀变为373K,101.3kPa的水蒸气,则
A.
ΔS=0
B.
ΔU=0
C.
ΔH=0
D.
ΔG=0
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【单选题】____ beautiful day it is! Let’s go and have a picnic in the park
A.
how
B.
how a
C.
what
D.
what a
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【简答题】Let’s have a picnic this S___________.
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相关题目:
【单选题】已知水的两种状态A(373K,101.3kPa,g),B(373K,101.3kPa,l),则与的关系为:()
A.
μ A =μ B
B.
μ A >μ B
C.
μ A <μ B
D.
两者不能比较
查看完整题目与答案
【单选题】-Jack, let’s have a picnic after school. -Sorry. I have ______Frank to work on the biology report with him.
A.
advised
B.
expected
C.
suggested
D.
promised
查看完整题目与答案
【简答题】根据以下信息,将 shopping list 填写完整。 A: Lily, tomorrow will be fine. Let’s have a picnic in Zhongshan Park, shall we? B: Wow, that sounds great! A: But we should prepare something for the picnic. Do you have ...
查看完整题目与答案
【单选题】______ wonderful weather it is! Let’s have a picnic in Gu Cun Park this afternoon.
A.
How
B.
What
C.
What a
D.
What an
查看完整题目与答案
【单选题】—Let’s have a picnic by the West Lake. —______.
A.
Never mind.
B.
That’s all right.
C.
Good idea.
D.
You’re lucky.
查看完整题目与答案
【单选题】立体像对的绝对定向中观测值为:
A.
像点坐标
B.
地面点坐标
C.
模型坐标
D.
同名点上下视差
查看完整题目与答案
【单选题】已知一元钱的边际效用为3个单位,一支钢笔的边际效用为36个单位,则消费者愿意用 ( )来买这支钢笔
A.
12 元
B.
36 元
C.
3 元
D.
108 元
查看完整题目与答案
【单选题】373K ,101.3kPa的水向真空膨胀变为373K,101.3kPa的水蒸气,则
A.
ΔS=0
B.
ΔU=0
C.
ΔH=0
D.
ΔG=0
查看完整题目与答案
【单选题】____ beautiful day it is! Let’s go and have a picnic in the park
A.
how
B.
how a
C.
what
D.
what a
查看完整题目与答案
【简答题】Let’s have a picnic this S___________.
查看完整题目与答案
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