解析：(If) the experiment succeeds or fai_考试试题_成人英语三级

【单选题】(If) the experiment succeeds or fails, it will (provide us with) (valuable) experience, which is essential to (improving) our future work.

A．If
B．provide us with
C．valuable
D．improving

网考网参考答案：A
网考网解析：
应改为Whether。whether可以与or搭配，if 不可以，whether表“是否，不管”时可以置于句首。查看试题解析出处>>