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【简答题】
游泳正式比赛有几种姿势?
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【简答题】阋读理解 Because earthquakes happen without warning, it's important to take steps now to prepare. Because you don't know where you will be when an earthquake happens, prepare some supplies for your home, ...
【简答题】求函数 f(x)=4sin( 2x 3 + π 6 ) 的单调增区间.
【单选题】已知函数y=e x 的图象与函数y=f(x)的图象关于直线y=x对称,则 [     ]
A.
f(2x)=e 2x (x∈R)
B.
f(2x)=ln2·ln x(x>0)
C.
f(2x)=2e x (x∈R)
D.
f(2x)=lnx+ln2(x>0)
【简答题】已知函数y=e x 的图象与函数y=f(x)的图象关于直线y=x对称,则(  ) A.f(2x)=e 2x (x∈R) B.f(2x)=ln2?lnx(x>0) C.f(2x)=2e x (x∈R) D.f(2x)=lnx+ln2(x>0)
【简答题】根据听力音频,完成下面的填空题。 Today,1. are a big part of college life. It's important to do one or more internships . While 2. college since an internship can well turn out to be your first job. 3. , deciding on...
【简答题】When you do business in Russia, it's important to _____and socialise.
【单选题】It's important to to put your talent into use .
A.
make  an  effort
B.
make
C.
made an effort
D.
don't  do
【判断题】棱镜片的主要功能在于导引光线方向,提高面板光辉度及控制亮度均匀
A.
正确
B.
错误
【简答题】关于函数f(x)=4sin (x∈R),有下列命题: ①函数y=f(x)的表达式可改写为y=4cos(2x- ); ②函数y=f(x)是以2π为最小正周期的周期函数; ③函数y=f(x)的图象关于点 对称; ④函数y=f(x)的图象关于直线x=- 对称. 其中正确的是___.
【简答题】I take ( ) decisions very seriously, because I think it's important to do the right thing.
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