Thanks ________ our medical knowledge, this terrible disease is much less common now.
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20世纪初的中国遭受很多外侮的主要原因是愚昧落后的封建制度。
A. 对
B. 错
pract▁▁▁lly 几差不多乎;
A. aca
B. ica
C. ice
D. ico
His annu__l income (收入) is $36,000; that is, he earns $3,000 a month.
A. i
B. u
C. a
D. e
I want to go ___ education when I leave college.
A. with
B. on
C. by
D. into