混悬液中应加入
A．助溶剂B．助悬剂C．乳化剂D．矫味剂E．增溶剂
参考答案：B
解析：为提高混悬液的稳定性，应加入助悬剂。选B。
______ was a great inventor and had over 1, 000 inventions during his lifetime.[ ]
A. Bill Gates
B. Jacques Cousteau
C. Henry Bethune
D. Thomas Edison
实生树和营养繁殖树的生命周期的区别，童期有何特点？
