塑料的主要成份有()()()()()()。
参考答案:树脂、填充剂、增塑剂、着色剂、润滑剂、稳定剂
___________ will I turn against my country. [ ]
A. In no case
B. Under no way
C. By all means
D.In no condition
将50%的硫酸溶液和10%的硫酸溶液等体积混合,所得溶液中H2SO4的质量分数是[ ]
A、大于30%
B、小于30%
C、等于30%
D、无法计算