use ________ hands, do not ________ in the library
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no ________, keep books away from ______,keep books out of the rain and _________>
do not ___________ or draw in the books
Unit 4 lead -in-task1Watch the video clip and tick the library rules that are mentioned by the librarian.
A. Smoking is not permitted in the library.
B. No bags, umbrellas, parcels may be brought into the library.
C. Library materials borrowed must be returned on or before the due date.
D. Users are not allowed to deface public property.
E. Silence must be observed strictly in the library.
企业的所有者权益在数量上等于（ ）。
A. 企业流动负债减去企业长期负债后的差额
B. 企业流动资产减去企业流动负债后的差额
C. 企业长期负债减去企业流动负债后的差额
D. 企业全部资产减去企业全部负债后的差额
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