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【判断题】
Solidworks草图不支持几何约束A.
正确
B.
错误
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举一反三
【简答题】《女娲补天》选自( ),这本书是西汉( ) 及其集体撰写的一部著作。
【单选题】已知函数f（x）在R上满足f（x）=2x 3 -x 2 +8x-8，则曲线y=f（x）在点（1，f（1））处的切线方程是（ ）
A.
y=9x+8
B.
y=12x+11
C.
y=9x-8
D.
y=12x-11
【单选题】According to the periodic table, ______still some elements undiscovered.
A.
there seem to be
B.
it seems to be
C.
it seems that
D.
there seem
【单选题】某进口设备的到岸价为1500万元,银行财务费,外贸手续费合计为36万元,关税300万元,消费税和增值税率分别为10%、17%,则该进口设备原价为( )万元。
A.
2386.8
B.
2376.0
C.
2362.9
D.
2352.6
【单选题】偶函数f（x）在（-∞，+∞）内可导，且f'（1）=-2，f（x+2）=f（x-2），则曲线y=f（x）在点（-5，f（-5））处切线的斜率为（ ）
A.
2
B.
-2
C.
1
D.
-1
【单选题】There seem to be two main reasons that women cry more often. One is biological. Up to age 12, boys and girls cry equally often. From then until age 18, the level of the hormone prolactin(催乳激素) rises i...
A.
women are born to be weaker than men
B.
women have more prolactin in their bodies
C.
men are taught not to cry
D.
both B and C
【简答题】请按照所给的成绩报告单完成下面的这封信。开头已给出: Dear parents, I got my report card yesterday. I did OK in some subjects. My math teacher said Yours Jack
【单选题】第三篇 There seem to be two main reasons that women cry more often. One is biological. Up to age 12, boys and girls cry equally often. From then until age 18, the level of the hormone prolactin(催乳激素) ris...
A.
women are born to be weaker than men
B.
women have more prolactin in their bodies
C.
men are taught not to cry
D.
both B and C
【简答题】定义在R上的函数f（x）满足f（x+y）=f（x）+f（y）+2xy（x，y∈R），f（1）=2，则f（-2）等于______．
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