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【单选题】
在完全竞争市场上,厂商的需求曲线是A.
向右下方倾斜的曲线
B.
水平线
C.
垂线
D.
向右上方倾斜的曲线
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反馈参考答案：
举一反三
【单选题】She had a headache because she _____ too long. She ought to have a break.
A.
has been reading
B.
read
C.
is reading
D.
had read
【简答题】a word referring to a person, a place or a thing
【简答题】《诗经》的复沓结构包含重章和( )两种形式。
【单选题】what class the following underlined phrase is? She ought to have told him about it.
A.
NP
B.
VP
C.
PP
D.
AdjP
E.
AdvP
【单选题】Her father decided she ought to have a private English ______.
A.
tuition
B.
tutor
C.
coach
D.
counsel
【单选题】以下有关塔菲尔公式说法不正确的是()
A.
塔菲尔公式中b值是一个主要与温度有关的常数。对大多数金属而言．常温下b的数值为常数
B.
塔菲尔公式是经验公式
C.
塔菲尔公式中a表示电流密度为单位数值时的过电位值
D.
当电流密度很小时，过电位与电流密度呈非线性关系
【判断题】According to CISG, a breaching party is liable for the damages resulting from the losses that he or she ought to have foreseen.
A.
正确
B.
错误
【单选题】She ought to have a rest; she has a headache because she ____too long.
A.
has been reading
B.
had read
C.
is reading
D.
read
【简答题】( )是最基本的构图方式,它将被摄体放于画面中央,适合于以人物为摄影主体的多种场合。
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