问题
选择题
Many questions________ in today's maths class, and most of them are very difficult. [ ]
A. came up
B. raised
C. rose
D. was come up
答案
答案：A
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Many questions________ in today's maths class, and most of them are very difficult. [ ]
A. came up
B. raised
C. rose
D. was come up
答案：A