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【单选题】
反应2NO2(g) = 2NO(g) + O2(g) 是一个元反应，正反应的活化能为114kJ·mol-1，等压反应热（摩尔焓变）为113kJ·mol-1，当温度从25℃升高到55℃时，则下列说法正确的是A.
正反应速率增加到原来的约 1.35 倍
B.
正反应速率增加到原来的约 16000 倍
C.
逆反应速率增加到原来的约 1.04 倍
D.
逆反应速率增加无法计算
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举一反三
【简答题】RAM一般又可分为两大类型:__和__。
【单选题】_______ has the second largest Chinatown in North America.
A.
Ottawa
B.
Toronto
C.
Vancouver
D.
Montreal
【单选题】In______, Chinatown has been the center of its Chinese community since the 1850s, which is a crowded and authentic ethnic neighborhood where Cantonese remains the first language for many.
A.
Boston
B.
New York
C.
Washington D.C.
D.
San Francisco
【单选题】The Indian old lady ________ live there ________. [ ]
A.
no; any more
B.
does not; any more
C.
no, any longer
D.
do not; any more
【简答题】London’s Chinatown has become a growing _______________.
【单选题】The board of directors_______has had different views on the current economy.
A.
strong
B.
stronger
C.
strongest
D.
strongly
【简答题】RAM一般又可分为两大类型()
【单选题】Chinatown has been the center of San Francisco's Chinese community since the 1850s. Its boundaries have expanded significantly since the 1960s, and the neighborhoods built there are generally wealthy.
A.
plentiful
B.
attractive
C.
friendly
D.
rich
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