解析库 > 填空经典1290题
At estimated 80 million adults in the United States use form of alternative medicine, from herbs and megavitamins to yoga and acupuncture. But while (i)_____ claims are made for these treatments, the scientific evidence for them often (ii)_____: studies and clinical trials, when they exist at all, can be (iii)_____ in design and too small to yield reliable insights.
- shows no inconsistencies
- lags far behind
- holds great promise
sweeping , lags far behind , shoddy 显示答案