企业2007年末应收账款余额为600万元；2008年收回已转销的坏账1万元，年末应收账款余额为900万元。该企业按0.5%计提坏账准备，2008年末应计提的坏账准备为5000元。()
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会计分录包括经济业务涉及的账户名称、记账方向和金额三方面内容。()
A. 正确
B. 错误
The text is most probably a______.
A. science news report
B. book review
C. newspaper ad
D. science fiction story
Liquid semiconductor is used to______.
A. get rid of the radioactive waste
B. test the power of nuclear batteries
C. decrease the size of nuclear batteries
D. reduce the damage to lattice structure
What does the underlined' word "collapsed" probably mean？
A. Were destroyed.
B. Caught fire.
C. Were flooded.
D. Sank.
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