【評論主題】10. She _____ for days, hoping to come up with the best answer to the difficult question.(A) serrate

【評論內容】10. She _____ for days, hoping tocome up with the best answer to the difficult question.她沉思多日， 希望能夠想出解決這個困難問題的最佳答案。根據come up with(想出)的敘述， 可以推測出答案應為思考。

【評論主題】6. Some athletes have taken to living and sleeping in _______ sealed tents or rooms thatsimulate hig

【評論內容】有些運動員開始養成生活及睡在模擬高海拔狀...

【評論主題】4. Some dentists are convinced that the addition of fluoride in water is ineffective as a_______ tre

【評論內容】有些牙醫堅信在水中加氟化物不是有效的預防...