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【简答题】
已知函数f(x)＝ · ，其中 ＝(sinωx＋cosωx, cosωx), ＝cosωx－sinωx,2sinωx)(ω＞0)，若f(x)相邻的对称轴之间的距离不小于 . (1)求ω的取值范围； (2)在△ABC中，a,b,c分别为A,B,C的对边，a＝ ,b+c＝3，当ω最大时，f(A)＝1，求△ABC的面积.
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举一反三
【简答题】名词解释:氧化反应____
【单选题】O dear! O dear! What shall I do? I have lost my beauty and lipstick too.
A.
hyperbole
B.
alliteration
C.
anticlimax
D.
euphemism
【单选题】O dear! O dear! What shall I do?I have lost my beau andlipsticktoo.
A.
euphemism
B.
alliteration
C.
anticlimax
D.
hyperbole
【简答题】Suppose you are the secretary of Personnel Department of a company and you are organizing a farewell party for a colleague who is going to retire. Write a memo in about 80 words to inform your colleag...
【单选题】“O dear! O dear! What shall I do? I have lost my beau and lipstick too.” What rhetorical devices is applied in the above sentences?
A.
euphemism
B.
alliteration
C.
anticlimax
D.
hyperbole
【简答题】解释厌氧,缺氧,氨化反应,硝化反应,反硝化反应,氨氧化菌(亚硝酸细菌),亚硝酸盐氧化菌(硝酸细菌),自养菌,异养菌,化能自养菌,化能异养菌,光能自养菌,光能异养菌,碳氮比,AO工艺,多级AO工艺等名词。
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