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【单选题】
In the sunny morning some English people usually take a raincoat or an umbrella with them because ________.A.
their friends ask them to do so
B.
it often rains in England
C.
they are going to sell them
D.
they are their favourite things
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【单选题】—What's this in English? — _____. [ ]
A.
No, it isn't
B.
It's a orange
C.
It's a pencil case
D.
They're eggs
【简答题】设A，B为两个事件，且已知概率P(A)=0.4，P(B)=0.3，若事件A，B相互独立，则概率P(A+B)=______．
【单选题】According to the passage, elephant can do many things EXCEPT ______.
A.
elephants can help people to drive the invaders out of the country
B.
elephants also have been trained to carry heavy goods through the forests
C.
throughout history, people have prized elephants for their great size and strength
D.
beautifully decorated elephants still play a significant role in traditional religious ceremonies
【单选题】The students are _______ to know that elephants can walk quietly on tiptoe.
A.
surprising
B.
surprised
C.
frightening
D.
frightened
【单选题】Did the experiment find any difference_____ what children have learned? [ ]
A.
in hopes of
B.
in case of
C.
in terms of
D.
in time of
【简答题】设A，B为两个事件，且已知概率P( )=0.7，P(B)=0.6，若事件A，B相互独立，则概率P(AB)=______。
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