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【简答题】
飞机在雨天晚点的概率 为 0.8 ,在晴天晚点的概率为 0.2 ,天气预报称明天有雨的概率 为 0.4 ,试求: (1) 明天飞机晚点的概率; (2) 如果第二天飞机晚点了,则天气是雨天的概率.
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举一反三
【单选题】足月新生儿,生后2周。为预防维生素D缺乏佝偻病的发生,应建议每日口服维生素D的剂量是( )
A.
200IU
B.
400IU
C.
1000IU
D.
1500IU
E.
2000IU
查看完整题目与答案
【单选题】Directions: There are four passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You should decide o...
B.
how an island rose up in the sea
C.
how soil was formed on a new island
D.
how life began on a volcano- produced island
查看完整题目与答案
【简答题】已知生存函数为 ,求: (1)一个刚出生的婴儿在50岁-60岁死亡的概率为: -------。 (2)活到50岁的人在60岁以前死亡的概率为 --------。 (3)一个刚出生的婴儿能活到70岁的概率为 -------。 (4)50岁的人能活到70岁的概率为 -------。
查看完整题目与答案
【单选题】某早产儿,为预防维生素D缺乏性佝偻病的发生,应建议每日口服维生素D.的剂量是
A.
200IU
B.
800IU
C.
1000IU
D.
1500IU
E.
2000IU
查看完整题目与答案
【单选题】Questio 21 is based on the passage you have just heard.
A.
Allow kids to learn at their own pace.
B.
Encourage kids to learn from each other.
C.
Organize kids into various interest groups.
D.
Take kids out of school to learn at first hand.
查看完整题目与答案
【单选题】When we ran to the top of the hill, we were _____ .
A.
out of fashion
B.
out of work
C.
out of the question
D.
out of breath
查看完整题目与答案
【单选题】足月新生儿,生后2周。为预防维生素D佝偻病的发生,应建议每日口服维生素D的剂量是:
A.
200IU
B.
400IU
C.
1000IU
D.
1500IU
E.
2000IU
查看完整题目与答案
【单选题】The friendship between China and France is ______. We should prize it.
A.
eternal
B.
successive
C.
consecutive
D.
insistent
查看完整题目与答案
【单选题】足月新生儿,生后2周。为预防维生素D缺乏性佝偻病的发生,应建议每日口服维生素D的剂量是
A.
200IU
B.
400IU
C.
1000IU
D.
1500IU
E.
2000IU
查看完整题目与答案
【单选题】对该药品广告批准文号有效期的认定,正确的是 查看材料
A.
药品广告批准文号有效期为6个月,该批准文号已到期作废
B.
药品广告批准文号有效期为1年,该批准文号已到期作废
C.
药品广告批准文号有效期为2年,该批准文号仍在有效期内
D.
药品广告批准文号有效期为2年,该批准文号已到期作废
查看完整题目与答案
相关题目:
【单选题】足月新生儿,生后2周。为预防维生素D缺乏佝偻病的发生,应建议每日口服维生素D的剂量是( )
A.
200IU
B.
400IU
C.
1000IU
D.
1500IU
E.
2000IU
查看完整题目与答案
【单选题】Directions: There are four passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You should decide o...
B.
how an island rose up in the sea
C.
how soil was formed on a new island
D.
how life began on a volcano- produced island
查看完整题目与答案
【简答题】已知生存函数为 ,求: (1)一个刚出生的婴儿在50岁-60岁死亡的概率为: -------。 (2)活到50岁的人在60岁以前死亡的概率为 --------。 (3)一个刚出生的婴儿能活到70岁的概率为 -------。 (4)50岁的人能活到70岁的概率为 -------。
查看完整题目与答案
【单选题】某早产儿,为预防维生素D缺乏性佝偻病的发生,应建议每日口服维生素D.的剂量是
A.
200IU
B.
800IU
C.
1000IU
D.
1500IU
E.
2000IU
查看完整题目与答案
【单选题】Questio 21 is based on the passage you have just heard.
A.
Allow kids to learn at their own pace.
B.
Encourage kids to learn from each other.
C.
Organize kids into various interest groups.
D.
Take kids out of school to learn at first hand.
查看完整题目与答案
【单选题】When we ran to the top of the hill, we were _____ .
A.
out of fashion
B.
out of work
C.
out of the question
D.
out of breath
查看完整题目与答案
【单选题】足月新生儿,生后2周。为预防维生素D佝偻病的发生,应建议每日口服维生素D的剂量是:
A.
200IU
B.
400IU
C.
1000IU
D.
1500IU
E.
2000IU
查看完整题目与答案
【单选题】The friendship between China and France is ______. We should prize it.
A.
eternal
B.
successive
C.
consecutive
D.
insistent
查看完整题目与答案
【单选题】足月新生儿,生后2周。为预防维生素D缺乏性佝偻病的发生,应建议每日口服维生素D的剂量是
A.
200IU
B.
400IU
C.
1000IU
D.
1500IU
E.
2000IU
查看完整题目与答案
【单选题】对该药品广告批准文号有效期的认定,正确的是 查看材料
A.
药品广告批准文号有效期为6个月,该批准文号已到期作废
B.
药品广告批准文号有效期为1年,该批准文号已到期作废
C.
药品广告批准文号有效期为2年,该批准文号仍在有效期内
D.
药品广告批准文号有效期为2年,该批准文号已到期作废
查看完整题目与答案
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