问题补充:
The invention of paper was a great contribution tohuman civilization.
A. a;a
B. the;the
C. /;/
D. the;/
答案:
A. a;a
B. the;the
(答案→)C. /;/
D. the;/
解析:paper 物质名词,意为“纸”,前面不加冠词;human civilization “人类文明”,习惯上前面也不用冠词。
时间:2018-08-31 19:16:34
The invention of paper was a great contribution tohuman civilization.
A. a;a
B. the;the
C. /;/
D. the;/
A. a;a
B. the;the
(答案→)C. /;/
D. the;/
解析:paper 物质名词,意为“纸”,前面不加冠词;human civilization “人类文明”,习惯上前面也不用冠词。