已知ABC∽DEF，且AB：DE=1：2，则ABC的面积与DEF的面积之比为

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自行车(bicycle)

[单选题]已知ABC∽DEF，且AB：DE=1：2，则ABC的面积与DEF的面积之比为

A. 1：4 (
B. 2：1 (
C. 4：1

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[单选题]（ ）A number of new houses __________in Wenchuan last year.

A. built
B. are built
C. were built
D. will be built

[单选题]23．Kang Kang is my ________ ．

A. teacher
B. friend
C. mother
D. father

[单选题]20．

A. on
B. in．
C. at
D. to

[单选题]8． People like to see films on ______ TV instead of going to _______cinema．

A. the；the
B. /；the
C. the；/
D. the； a

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