高等继续教育 / 专科英语II
正确率：100%
题型描述: 单选题
The total number of articles published on cancer ＿＿＿＿＿＿＿＿＿ amazing.
A.have been
B.is
C.be
D.are
The total number of articles published on cancer ＿＿＿＿＿＿＿＿＿ amazing.
A.have been
B.is
C.be
D.are
参考答案：
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