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【单选题】
下列关于能量的转移和转化的方向性的说法中不正确的是 [ ]A.
自然界中不是所有能量都能利用
B.
能量的利用是有条件的，也是有代价的
C.
不同温度的物体发生热传递时，无外界做功时，方向只能自发地从高温物体到低温物体，不会相反
D.
汽车刹车时车的动能转化为内能，这些内能可收集起来，再作为车行驶的动力
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【单选题】Early settlers_______ their survival _______ hard work and determination to succeed.
A.
corresponded; with
B.
owed ; to
C.
adapted; to
D.
attached; to
【多选题】根据政府采购法规规定，在政府采购活动中，关于保证金的规定错误的是：（）
A.
投标保证金不得超过采购项目预算金额的3%
B.
投标保证金只能以支票、本票或者担保机构出具的保函等非现金形式提交
C.
投标人未按照招标文件要求提交投标保证金的，投标无效。
D.
中标供应商的投标保证金应当自政府采购合同签订之日起5个工作日内退还
【单选题】Early settlers believe that a sunken body could be located by casting into a stream ______.
A.
any bandanna
B.
a bandanna that had been worn by a drowned man
C.
a magic bandanna
D.
a bandanna that had been blessed
【简答题】Both the early European settlers and the Aborigines had to______about natural products of Australia.
【单选题】In the early period, European settlers resorted to deceit and even war to deal with ______ who inhabited the American continent earlier than them.
A.
the Blacks
B.
the Indians
C.
the Mexicans
D.
the Spaniards
【判断题】The early settlers in the colony discovered a way to make money by growing tobacco. ()
A.
正确
B.
错误
【单选题】Early settlers usually moved their belongings west in wagon trains.
A.
relations
B.
supplies
C.
livestock
D.
possessions
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