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【单选题】
3-7-2、若序列的 变换 ,则 等于( )。A.
1
B.
0.5
C.
1.75
D.
0
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举一反三
【单选题】The detectives in the detective films directed by him always pretended ______ ordinary people looking for evidences or clues and _______ able to solve any cases in the end. [ ]
A.
being; being
B.
to be; to be
C.
to be; being
D.
to be; were
【单选题】We ____ the contract when the detective phoned us.
A.
were about to sign
B.
were going to sign
C.
would sign
D.
have sign
【简答题】是第二语言教学法史上第一个完整的教学法体系,也是第二语言教学法史上最古老的教学法。
【简答题】最古老的教学法是________。
【单选题】The detective and writer ______ quite well-known and his stories were made into TV series.
A.
is
B.
are
C.
has
D.
have
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