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【判断题】
自相关可以用一阶自回归形式进行表示 A. 对 B. 错A.
正确
B.
错误
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【简答题】极限 ,则k = ( ),a=( )
【单选题】指出句中谓语:The days get longer and longer when summer comes.
A.
get
B.
longer
C.
days
D.
summer
【单选题】听力原文： Indian summer is a short period of extremaly fair weather and mild days in autumn. It comes in late October or early November while the leaves are turning color and falling from the trees. It ha...
A.
Late September.
B.
Late October.
C.
Early November.
D.
B or C.
【单选题】2 The days get longer and longer when summer comes.
A.
get
B.
longer
C.
days
D.
summer
【单选题】听力原文：Man: Memories of long summer days by the sea are recalled in 'The Last Summer', our family drama this afternoon. The Finnish children's writer Tova Janssen, well known for her stories about famil...
A.
A play about a child.
B.
A reading from a children's book.
C.
A holiday programme.
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