问题
选择题
The computer system _____ suddenly while I was surfing the Internet. [ ]
A. broke down
B. broke out
C. broke up
D. broke in
答案
A
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The computer system _____ suddenly while I was surfing the Internet. [ ]
A. broke down
B. broke out
C. broke up
D. broke in
A
请根据以上资料，填制进口报关单以下栏目：