熔结环氧粉末外涂层技术具有操作简便、无污染、涂层抗冲击和抗弯曲性能好、耐温性高等优点。
参考答案：对
Which of the following is true about the politician().
A.He had proposed the same policy 2 years before the speech.
B.He did mention his old advocacy in his speech.
C.There was no time for the politician to talk about his advocacy.
D.His speech was just the opposite of what he had advocated 2 years before.
碘酊用于口腔黏膜消毒常用的浓度是（）
A.0.5%
B.1.0%
C.2.0%
D.3.0%
E.5%
