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【单选题】
市场机制在不少场合会导致资源不能有效配置,即导致无效率,这种现象被称为( )A.
市场入清
B.
市场无序
C.
市场失灵
D.
市场竞争
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举一反三
【单选题】Which of the following statements about the 55 men framing the Constitution is true?
A.
Thomas Jefferson was not among them.
B.
All of them were famous.
C.
All of them contributed much to the framing
D.
George Washington and Benjamin Franklin were among them.
【单选题】Every year lots of trees _______ to make our country more beautiful.
A.
is planted
B.
was planted
C.
are planted
D.
were planted
【判断题】The American Constitution is the first written constitution in the modern world.
A.
正确
B.
错误
【简答题】短文填词。根据首字母提示，完成短文。 Have you ever p 1 a few trees on Tree Planting Day? Each year, millions of people, both old and young, men and women, plant a lot of trees. But this may not be the best way to make ...
【单选题】Many trees _______ on the hills last year. And we will plant more this year.
A.
plant
B.
planted
C.
are planted
D.
were planted
【单选题】Many of today ’ s superstitions (迷信) are based on old beliefs (信念) . K nocking on the wood for good luck comes from the old idea that spirits (精灵) lived in trees. B reaking a mirror is bad luck becaus...
A.
B reaking a mirror is bad luck because people once thought that reflections were part of a person ’ s spirit.
B.
Many of today ’ s superstitions （迷信） are based on old beliefs （信念） .
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