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（）是教师运用口头语言系统连贯地向学生传授知识、技能，发展学生智力的教学方法。
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【简答题】Fill in each blank with one suitable word from the list below, Each word in the list can be used once only. a actually bite catch caught dearest deep deeply dice distre evidence. ...
【简答题】Fill in each blank with one suitable word from the list below, Each word in the list can be used once only. a actually bite catch caught dearest deep deeply dice distre evidence. ...
【简答题】Directions: In this part there are two passages followed by questions or unfinished statements, each with four suggested answers marked A, B, C and D. Choose the one that you think is the best answer....
【单选题】1 New technology often creates unanticipated problems. 2 Automobiles, for ex- ample, provide numerous benefits, but they also pollute the air and kill about fifty thousand Americans each year. 3 It is...
A.
1
B.
2
C.
3
D.
4
E.
5
【单选题】在复平面内，设向量 p 1 =( x 1 ， y 1 )， p 2 =( x 2 ， y 2 )又设复数 z 1 = x 1 + y 1 i； z 2 = x 2 + y 2 i（x 1 ，x 2 ，y 1 ，y 2 ∈R），则 p 1 ? p 2 等于（ ）
A.
. z 1 z 2 + z 1 . z 2
B.
. z 1 z 2 - z 1 . z 2
C.
1 2 （ . z 1 z 2 - z 1 . z 2 ）
D.
1 2 （ . z 1 z 2 + z 1 . z 2 ）
【简答题】Most countries have four seasons: spring, summer, fall and winter. However, in some places, like Thailand, ther are only three seasons: summer, the "rainy season" and winter. A "rainy sseason" is a ti...
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