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【单选题】
现有新型流感疫苗,为了评价其免疫效果你准备选择的观察人群( )A.
抗体水平高的人群
B.
交通不发达的山区人群
C.
预测发病率低的人群
D.
预测发病率高的人群 验比双侧检验所需样本量小
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】以下关于行政机关享有行政强制执行权的表述哪一项是错误的?（ ）
A.
城乡规划法规定作出责令拆除决定的城乡规划部门所属的县级人民政府有权强制拆除建设工程
B.
作出拆迁裁决的房地产管理局有权自行强制拆除民宅
C.
作出处罚决定的海关可以将其保证金抵缴或者将其被扣留的货物、物品、运输工具依法变价抵缴罚款
D.
经县以上税务局局长批准，税务机关有权书面通知开户银行或者其他金融机构从存款中扣缴税款
【简答题】在线性结构中,第一个结点 1 前驱结点,其余每个结点有且只有1个前驱结点;最后一个结点 2 后继结点,其余每个结点有且只有1个后继结点。
【单选题】Price elasticity of demand measures on the
A.
responsiveness to the change in demand and the change in supply
B.
responsiveness to the change in demand and the change in price
C.
responsiveness to the percentage of change in demand and the percentage of change in supply
D.
responsiveness to the percentage of change in demand and the percentage of change in price
【单选题】下述属于海关行政处罚权的是：
A.
强制海关行政管理人履行海关处罚决定
B.
封存被稽查人有违法嫌疑的进出口货物
C.
在海关监管区检查走私嫌疑人的身体
D.
没收走私货物、物品及违法所得
【单选题】Price elasticity of demand is defined as:
A.
the slope of the demand curve.
B.
the slope of the demand curve divided by the price.
C.
the percentage change in price divided by the percentage change in quantity demanded.
D.
the percentage change in quantity demanded divided by the percentage change in price.
【简答题】当代西方著名早期教育有哪几种主要的课程模式和教育方案?
【单选题】Demand is said to be price elastic if_________.
A.
demand shifts substantially when income or the expected future price of the good changes
B.
buyers do not respond much to changes in the price of the good
C.
buyers respond substantially to changes in the price of the good
D.
the price of the good responds substantially to changes in demand
【单选题】Demand is said to be price elastic if
A.
the price of the good responds substantially to changes in demand.
B.
demand shifts substantially when income or the expected future price of the good changes.
C.
buyers do not respond much to changes in the price of the good.
D.
buyers respond substantially to changes in the price of the good.
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