The European Union countries were once worried that they would not have ____ supplies of petroleum.
题目
The European Union countries were once worried that they would not have ____ supplies of petroleum.
A) proficient B) efficient C) potential D) sufficient
答案
D) sufficient
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
最新试题
- 已知二次函数F(X)=AX^2+BX+C(A>0)的图像与X轴有二个不同的公共点,若F(C)=0且0
- 已知A[X1,Y1].B[X2,Y2]是直线Y=-X+2与双曲线y=k/x的两个不同交点,则K的取值范围是多少
- 用a/an填空 1 Is it( )Chinese book or ( )English book?2 This is ( )ring,and it is ( )orange ring.
- You should read English more to improve your reading.I will take it .
- CaSO4可以用饱和NaCO3浸泡后用酸除去吗
- 甲单独做要15小时,乙单独做要20小时,现在两人合作,甲中途离开,共用10小时,甲提前走了几小时 ,要思路
- 解一元二次方程 3x²+5(2x+1)=0
- 工业上常通过三步反应获得硫酸生产1吨98%的浓硫酸需要含杂质25%的黄铁矿多少吨
- 四折就是十分之_,改写成百分数是_.
- SMOKING IS HARMFUL TO YOUR HEALTH QUIT SMOKING REDUCESHEALTH RISK
热门考点