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【简答题】
$\lim_{x\rightarrow 0} x^2 \sin \frac{1}{x}$__
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】令$f(x)=\frac{x^{2}}{1+x^{2}}$,则它的不定积分为（）
A.
x-arccotx+c
B.
x-arccosx+c
C.
x-arcsinx+c
D.
x-arctanx+c
【多选题】Gardening is ______.
A.
a great daily exercise
B.
a great way to keep your lawn beautiful
C.
a great way to keep you healthy
D.
landscape painting
【单选题】Choose the most appropriate answer by completing the sentences below or answering the questions.1. Why is Billy a bit disappointed about the film?
A.
The quality of the film is comparable with the novel itself.
B.
The movie is unbelievable, for the plot is not true to the novel.
C.
The stories producers and directors tell are unbelievable.
D.
While adapting the original novels into films, producer exaggerated too much.