题目

It’s reported that the new test might ________ doctors to detect the disease early. (able) 答案：【答案】enable【解析】句意：据报道,新的测试可能使医生早点检测到疾病。情态动词might后面用动词原形；able此处变成动词enable,构成固定结构enable sb. to do表达“使医生早点检测到疾病”。故答案为enable。.在的展开式中项的系数为     ．