高等继续教育 / 大学英语I
正确率：100%
题型描述: 单选题
＿＿＿＿＿＿＿＿＿＿ that silver is not widely used as a conductor?
A.Why is it
B.Why is that
C.Why is
D.Is it why
＿＿＿＿＿＿＿＿＿＿ that silver is not widely used as a conductor?
A.Why is it
B.Why is that
C.Why is
D.Is it why
参考答案：