All artists are common in that______.
A. they use shapes and colors instead of words
B. they are trying to teach the public
C. what they want to teach is difficult to explain
D. they want to learn from the public
【B3】
A. constant
B. decreasing
C. stable
D. increasing
【B17】
A. seldom
B. frequently
C. invariably
D. hardly
原始凭证金额出现错误，应当由出具单位重开或更正。()
A. 正确
B. 错误
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