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For all the challenges we face, this country is still home to the most industrious, most determined people on the planet.
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To this day, Chinese people call themselves “the descendants of Yan and Huang.”
Complete the sentences with the expressions below. Change the form where necessary.go beyondfit intorest inopen upcombine … withbe committed toallow for1 After graduation, she ____________ a library in the countryside to enrich the local people’s cultural life.2 The cultural exchange program will be more effective when ____________ lectures and field trips.3 When he arrived in China, he tried hard to change his habits and customs to ____________ Chinese culture.4 China ____________ developing a friendly and cooperative relationship with all other countries in the world.5 The Chinese custom of drinking hot water ____________ simple preference; hot water is believed to lower the body’s temperature and restore the person’s health.6 International students bring differing cultural experiences, expectations, and learning styles to the classroom that ____________ new perspectives to be introduced.7 The real value of this cross-cultural program ____________ teaching our people a realistic attitude toward globalization.
拉格朗日乘数法是函数取极值的充要条件
多元函数的极值点，只可能在函数的驻点处取得，不可能在偏导数不存在的点处取得
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