对于银行存款账户，期末余额＝期初余额+本期贷方发生额-本期借方发生额。()
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What will be the color of trash cans for paper？
A. Pink.
B. Maroon.
C. Green.
D. White.
The female ostrich lays her eggs in her neighbors' nests most probably because______．
A. her nest is not big enough
B. she cannot protect all her eggs
C. she cannot tolerate all her eggs
D. her nest is not comfortable enough
The author' s main purpose in the second paragraph is to______．
A. discuss the problem of handling trash
B. suggest ways to cope with traffic problems
C. point out the disadvantage of hear traffic
D. propose an alternative system of transportation
What will be the primary responsibilities of the volunteers？
A. To paint the trash cans.
B. To pick up and sort the trash.
C. To pick up and deliver the trash.
Do work in the recycling center.
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