The disease malaria,which is spread by mosquitoes,kills over one million children yearly.______,
题目
The disease malaria,which is spread by mosquitoes,kills over one million children yearly.______,
______,according to the United Nations,hunger and malnutrition claim ten million lives each year.
A.However B.On the contrary C.On top of this D.As a result
答案为什么是C呢？我也选的 A转折，更强调下一句！on top of this 是基于......的意思！
答案
答案是A 表示转折,整句话的意思是疟疾每年***死了超过一百万的儿童,“而”饥饿和营养不良***死了1000万德儿童.
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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