__________________ 是指一定时期内企业商品销售额在市场商品销售总额中所占的比率。
He asked me ___________ Zhang Hua came to school or not.
— What would you like to have, meat or fish?
— _____________________.
It's ___________ to point to or talk about strangers in public.
— ___________________
— Once or twice a week.
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