题目

—________ should get the job，Joe or Jeff? —I think Joe should get the job. A．Who do you think  B．Do you think who C．What do you guess  D．Do you guess what 答案：A反比例函数(k是常数，k≠0)的图像经过点(a，－a)，那么k________(填“＜”或“＞”)0．