Dart, who had at first been very tense, at last relaxed.起初，达特非常紧张，最后终于放松了下来。At last Andrew gave them a crumb of information.最后，安德鲁向他们透露了一点信息。I'm so glad that we've found you at last!我们终于找到你了，我真是太高兴了！...
The linear glucan molecules of cellulose are bound together by hydrogen bonds.纤维素中直链葡聚糖分子由氢键连接在一起.Objective To investigate the therapeutic effect of carboxymethyl - � � - 1,3 - glucan ( CMG ) on sepsis in mice.目的 观察羧甲基葡聚...