题目

计算：2sin30°+（﹣1）2018﹣（ ）﹣1=． 答案：【1】0________ you have seen both fighters, ________ will win? A. Since; do you think who　　　　　　　　　　    B. As; who you think C. When; whoever　　　　　　　　　　    D. Since; who do you think