The synthesis of chitinase by Bacillus thuringiensis HD 224 strain using eight different carbohydrate resources was studied. 考察八种碳源对苏云金杆菌HD224菌产几丁质酶的影响.
新体系仍处于规划阶段。The new system is still in the planning stages.洛杉矶穷人的境况仍未得到改善。Conditions for the poor in Los Angeles have not improved.仍有很多人对堕胎行为表示厌恶。There are many people who still find the act of abortion abhorrent....