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【单选题】
下面哪个缩写是代表插电式混合动力混合动力汽车?A.
PEV
B.
PHEV
C.
FEV
D.
HCEV
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【简答题】Decorate the Christmas tree is usually a family . For many families, 1. ________ it starts with choosing a tree from either a farm and a store. Then the tree 2. ________ is brought at home and pu...
【单选题】Researchers have studied the poor as individuals, as families and households, as members of poor communities, neighborhoods and regions, as products of larger poverty-creating structures. They have be...
A.
they are also members of the same society as the poor
B.
they play an important role in creating and reproducing poverty
C.
solution of the poverty problem is at their mercy
D.
they know the living conditions of the poor better than other groups
【简答题】设f(x)为奇函数，g(x)为偶函数，问以下函数是奇函数的是( )． (A)f[f(x)] (B)g[f(x)] (C)f[g(x)] (D)g[g(x)]
【简答题】The little boy did not smile until he saw his mother.
【简答题】下列是实验室常用的仪器： 请回答下列问题： （1）图中仪器①的名称是______，仪器④的名称是______． （2）实验室用石灰石和盐酸制取二氧化碳的化学方程式：______． （3）选用上图所示的仪器组装一套制取二氧化碳的发生装置______（填编号）． （4）如图为某同学设计并进行的有关CO 2 性质的探究实验过程筒图．请回答： ①该实验的实验目的是______； ②该实验得到的结论是___...
【单选题】---Was it not until last week ( )he decided to give up smoking? ---No,He began he saw the news film last month.
A.
when; as soon
B.
that; immediately
C.
did; that
D.
that; till
【简答题】从下图所示的仪器中，选择相关的仪器，按要求填空． （1）C所示仪器的名称是______，它的用途是______． （2）过滤需要用到上图中的______，其名称是______．
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