Choose the one most suitable to fill in the blank.
题目
Choose the one most suitable to fill in the blank.
1.Everyone was asked to ___ suggestions for the party.
A.relax B.contribute C.strive D.sacrifice
2.the ___ objective of this organization is to help the poor.
A.academic B.local C.subject D.primary
3.Smoking is a leading___ in lung diseases.
A.favor B.factor C.labor D.grade
4.The cancer has spread to the surrounding___.
A.organs B.centuries C.cases D.opinions
5.The energy of the sun can be used to ___ electricity.
A.desert B.contain C.generate D.respond
6.The boys ___ with each other for the prize.
A.protected B.concluded C.blamed D.competed
7.I __ the decision be moved to another date.
A.attend B.propose C.accomplish D.bother
8.__ is a very desirable trait in business.
A.Disease B.Efficiency C.Item D.Amount
9.Befire classes start,you’d better get__ with one another.
A.offered B.doubted C.acquainted D.avoided
10.This university __ in engineering courses.
A.
答案
C D B A C B B B C B
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
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