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【单选题】
.Neither my wife nor I ______ able to persuade our son to change his mind. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
am
B.
are
C.
have been
D.
is
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【多选题】下列人员中,连续任职不得超过两届的是
A.
国家主席
B.
国务院总理
C.
全国人大委员长
D.
最高法院院长
【判断题】除某些特定要求外,使用胶头滴管加液时,不能伸入容器,更不能接触容器。
A.
正确
B.
错误
【判断题】我国特高压设备研制的难度主要表现在技术水平低。
A.
正确
B.
错误
【单选题】Why won’t Alan worry even if it rains?
A.
Because he heardthe weather forecast.
B.
Because he thinks it’ll only be a short shower that cools things off a little.
C.
He prefers a short shower.
D.
He is expecting a gentle breeze to cool things off.
【简答题】已知函数f(x)= 1 3 x 3 + 1 2 (a-1)x 2 +ax(a∈R) (1)若f(x)在x=2处取得极值,求f(x)的单调递增区间; (2)若f(x)在区间(0,1)内有极大值和极小值,求实数a的取值范围.
【简答题】Choose the proper word to fill in each blank from the word given below saw consider off looking If idea small out trouble drive legs about “And what _1__ it won’t go in the car? The cl...
【简答题】设 f(x)= x 3 - 3 2 (a+1) x 2 +3ax+1 . (Ⅰ)若函数f(x)在区间(1,4)内单调递减,求a的取值范围; (Ⅱ)若函数f(x)在x=a处取得极小值是1,求a的值,并说明在区间(1,4)内函数f(x)的单调性.
【简答题】选用方框内合适的短语并用其正确形式填空(每个短语限用一次)。 A if not, if only, even if, only if 1. she’d listen to what he’s saying, I’m sure she could work it out. 2. We’ll have the party in the garden if the weather’s good. , i...
【简答题】已知函数f(x)=x 3 +ax+b. (1)若f(x)在x=0处取得极值为-2,求a、b的值; (2)若f(x)在(1,+∞)上是增函数,求实数a的取值范围.
【简答题】已知函数f(x)=x 3 +3(a-1)x 2 -12ax+b在x=x 1 处取得极大值M,在x=x 2 处取得极小值N, (1)若f(x)的图象在其与y轴的交点处的切线方程是24x-y-10=0,求x 1 ,x 2 ,M,N的值 (2)若f(1)>f(2),且x 2 -x 1 =4,b=10求f(x)的单调区间及M,N的值.
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