[填空题] 栈和队列都是___结构;对于栈,只能在___插入和删除元素;对于队列,只能在___插入元素,在___删除元素。

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• ●    Our ucce _______ whether everyone work hard or not.( )
• ●    Morning or afternoon. It make no _______ to me.
• ●    Whether we will go or not __________ the weather.
• ●    Which ________ do you prefer, coffee or orange juice?
• ●    Table______ of tone or wood.
• ●    Without water, _________ no plant or animal.
• ●    I am wondering if they are ____ or____.
• ●    _________ in a peron’ peech or writing uually range on a continuum from caual or colloquial to formal or polite according to the type of communicative ituation.
• ●    __________ i the act performed by or reulting from aying omething; it i the conequence of, or the change brought about by the utterance.
• ●    All people, whether they be rich or poor, trong or weak, privileged or deprived，are interdependent, and _______ the common tak of eeking to achieve mankind full potential
• ●    Many boy enjoy _______ football, baketball or baeball
• ●    － What doe the ign over there read － “No peron ________ moke or carry a lighted cigarette, cigar or pipe in thi area”