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【单选题】
当正态总体的方差已知时,在小样本条件下,估计总体均值使用的分布是
A.
正态分布
B.
t分布
C.
卡方分布
D.
F分布
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参考答案：
举一反三
【单选题】Why did many newly-weds usually walk away at the end of their inquiry?
A.
They knew they could buy better-quality appliances elsewhere.
B.
They were bored with the owner’s long speech.
C.
They wanted to compare prices at other stores.
D.
They didn’t think the store could meet their needs.
查看完整题目与答案
【单选题】This offer is to your reply reaching here before the end of this month.
A.
compare
B.
subject
C.
limit
D.
back
查看完整题目与答案
【单选题】孕妇，31岁，G1P044周妊娠，尚未临产，检查孕妇血压、胎心率均在正常范围，拟诊为过期妊娠入院，入院后做胎盘功能检查，下列那项不是检查胎盘功能的内容
A.
胎动计数
B.
NST
C.
B型超声生物物理评分
D.
羊水L/S比值测定
E.
羊膜镜检查
查看完整题目与答案
【单选题】As part of your review of the final analytical procedures, you compare the results to the following comments on the audit file: (1) The company has increased the sales prices charged to customers whil...
A.
1 and 2
B.
1 and 4
C.
2 and 3
D.
3 and 4
查看完整题目与答案
【单选题】The key to an effective presentation is to state your points clearly and compare each of your points at the end of your presentation.
A.
locate
B.
recognize
C.
discovery
D.
compare
查看完整题目与答案
【单选题】刘某,停经40+5周,行胎盘功能检查,下列哪项不正确()
A.
胎动计数≥6次/2小时为正常
B.
孕妇尿中雌三醇(E3)测定,一般测24小时尿中雌三醇含量>15mg为正常
C.
缩宫素激惹试验(OCT)阳性,提示胎盘功能低下
D.
孕妇血清胎盘生乳素(HPL),若足月妊娠时该值<4mgL或突然降低50%,提示胎盘功能正常
E.
胎儿监护和B超联合检测胎儿宫内缺氧情况: 10~8分无急慢性缺氧
查看完整题目与答案
【单选题】28岁孕妇，平素月经不规律，停经42同入院。产科检查：官高36cm，腹围102cm，胎位、胎心均正常，行胎盘功能检查，提示胎盘功能减退的指标是（）
A.
孕妇胎动计数16-30次／天
B.
NST试验胎动时胎心加速
C.
OCT试验出现连续晚期减速
D.
B超测量羊水指数为9
E.
孕妇24小时尿雌三醇值20mg
查看完整题目与答案
【单选题】Listen to the story and choose the right anwers to the questions you hear. 2. Why did many newly-weds usually walk away at the end of their inquiry?
A.
They knew they could buy better-quality appliances elsewhere.
B.
They were bored with the owner’s long speech.
C.
They wanted to compare prices at other stores.
D.
They didn’t think the store could meet their needs.
查看完整题目与答案
【简答题】材料:5岁的小强在幼儿园经常为了抢夺玩具与小朋友发生冲突,有时甚至对小朋友产生拳打脚踢等攻击性行为。在幼儿园,其他小朋友都躲着他,很不受小朋友欢迎。 (1)请你分析小强产生击性行为的可能原因有哪些?(10分。) (2)你觉得应如何对小强进行教育或干预以矫正其攻击性行为?(15分。)
查看完整题目与答案
【简答题】逆变桥中晶闸管均串有空心电感以限制晶闸管导通时的()。
查看完整题目与答案
相关题目：
【单选题】Why did many newly-weds usually walk away at the end of their inquiry?
A.
They knew they could buy better-quality appliances elsewhere.
B.
They were bored with the owner’s long speech.
C.
They wanted to compare prices at other stores.
D.
They didn’t think the store could meet their needs.
查看完整题目与答案
【单选题】This offer is to your reply reaching here before the end of this month.
A.
compare
B.
subject
C.
limit
D.
back
查看完整题目与答案
【单选题】孕妇，31岁，G1P044周妊娠，尚未临产，检查孕妇血压、胎心率均在正常范围，拟诊为过期妊娠入院，入院后做胎盘功能检查，下列那项不是检查胎盘功能的内容
A.
胎动计数
B.
NST
C.
B型超声生物物理评分
D.
羊水L/S比值测定
E.
羊膜镜检查
查看完整题目与答案
【单选题】As part of your review of the final analytical procedures, you compare the results to the following comments on the audit file: (1) The company has increased the sales prices charged to customers whil...
A.
1 and 2
B.
1 and 4
C.
2 and 3
D.
3 and 4
查看完整题目与答案
【单选题】The key to an effective presentation is to state your points clearly and compare each of your points at the end of your presentation.
A.
locate
B.
recognize
C.
discovery
D.
compare
查看完整题目与答案
【单选题】刘某,停经40+5周,行胎盘功能检查,下列哪项不正确()
A.
胎动计数≥6次/2小时为正常
B.
孕妇尿中雌三醇(E3)测定,一般测24小时尿中雌三醇含量>15mg为正常
C.
缩宫素激惹试验(OCT)阳性,提示胎盘功能低下
D.
孕妇血清胎盘生乳素(HPL),若足月妊娠时该值<4mgL或突然降低50%,提示胎盘功能正常
E.
胎儿监护和B超联合检测胎儿宫内缺氧情况: 10~8分无急慢性缺氧
查看完整题目与答案
【单选题】28岁孕妇，平素月经不规律，停经42同入院。产科检查：官高36cm，腹围102cm，胎位、胎心均正常，行胎盘功能检查，提示胎盘功能减退的指标是（）
A.
孕妇胎动计数16-30次／天
B.
NST试验胎动时胎心加速
C.
OCT试验出现连续晚期减速
D.
B超测量羊水指数为9
E.
孕妇24小时尿雌三醇值20mg
查看完整题目与答案
【单选题】Listen to the story and choose the right anwers to the questions you hear. 2. Why did many newly-weds usually walk away at the end of their inquiry?
A.
They knew they could buy better-quality appliances elsewhere.
B.
They were bored with the owner’s long speech.
C.
They wanted to compare prices at other stores.
D.
They didn’t think the store could meet their needs.
查看完整题目与答案
【简答题】材料:5岁的小强在幼儿园经常为了抢夺玩具与小朋友发生冲突,有时甚至对小朋友产生拳打脚踢等攻击性行为。在幼儿园,其他小朋友都躲着他,很不受小朋友欢迎。 (1)请你分析小强产生击性行为的可能原因有哪些?(10分。) (2)你觉得应如何对小强进行教育或干预以矫正其攻击性行为?(15分。)
查看完整题目与答案
【简答题】逆变桥中晶闸管均串有空心电感以限制晶闸管导通时的()。
查看完整题目与答案
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