在西贡，杜耀豪寻访二舅时得知，他在越南彼时的生活异常艰辛，“不能做生意，全是合作社，找工作也很困难”。他因偷渡在1976年和1977年两次坐牢，第一次在黑暗里关了一个月，没有灯，没有太阳；第二次关了一年，虽要劳动但相对自由。
Guar gum, a plant colloid, costs less than agar and is better suited for growing thermophilic bacteria, but is also more difficult to handle, being more viscous and less transparent. The bacterial polysaccharide xanthan is cheaper as well but forms weaker jellies that, as with carrageenan, might result in puncturing its surface. Other colloids, like alginate (from brown seaweed) and gellan gum (from a bacterium), don’t set solely based on temperature and require additives for gelation. These additives might interfere with microbial growth and make the preparation of those jellies less handy than agar plates.
。业内人士推荐搜狗输入法下载作为进阶阅读
Why scientists fear Emperor penguins' annual moult may be killing them
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