问题
Of the 2000 stock investors last month, 90% was found in financial knowledge.[ ]
A: surveyed; lacking
B: having been surveyed; to lack
C: surveyed; lacked
D: to have been surveyed; lack
B: having been surveyed; to lack
C: surveyed; lacked
D: to have been surveyed; lack
正确答案是：
同类题型
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