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【简答题】
流行性出血热（EHF）是一种危害性较大、全球性分布的自然疫源性传染病。我国迄今已在26个省市证实本病的存在或流行。1990年以来，全国EHF发病率又有所抬头。某市尚缺乏相关资料。本次研究的目的旨在了解该市流行性出血热（EHF）在人和鼠间的流行状况和趋势，为制定相应的防治措施提供科学依据。 问题：1.本次研究拟采用什么研究方法？ 2.主要研究内容包括哪些？
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举一反三
【单选题】—What does his mother look like? —_____． [ ]
A.
She's a doctor
B.
She's forty
C.
She's thin
D.
She works in a bank
【单选题】What does Simon's mother think of his present job?
A.
The pay is not bad.
B.
It is a great shame for a university graduate to do gardening.
C.
It is not bad as a hobby.
D.
It is a fine job, but Simon should get another job for a change.
【单选题】What does his mother do?
A.
She owns a beauty salon.
B.
She runs a small family store.
C.
She works at a bread shop.
【简答题】智能大厦在建筑上包括: 建筑设备自动化系统、 办公自动化系统、 ( )。
【简答题】某地区按用电负荷预测,2020年规划区电网最高供电负荷预测为24万千瓦,采用110kv变电站,110kV变电站的容载比2.1。现状110kV变电站设置如下,请问变电站容量是否足够?如果不够,还需增设几台 主变压器,(新建110千伏变电站主变单台容量采用50MVA) 主变台数×容量(万千伏安) 财山站 3×5 园区站 2×5 白沙站 2×5 建新站 2×5
【单选题】What does his mother do? ( )
A.
She owns a beauty salon.
B.
She runs a small family store.
C.
She works at a bread shop.
D.
She works at a car factory.
【单选题】What does his mother look like? [ ]
A.
She's a doctor
B.
She is forty
C.
She is thin
D.
She works in a bank.
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