多选题
The doctor ______ so frequently on disease-prevention techniques that his colleagues accused him of ______.
【正确答案】
A、E
【答案解析】[解析] ●so…that…表示“非常……所以……”，前后同义重复。
●两空联动，都与frequently同义重复，表示“变得快”。
●vacillate摇摆不定，sermonize说教，rely依靠；steadfastness坚定的，inconsistency前后不一致，negligence疏忽。答案选AE。