硫代硫酸钠的作用是()。
A.抑菌剂
B.等渗调节剂
C.抗氧剂
D.润湿剂
E.助悬剂
参考答案:C
解析:
[知识点] 抗氧剂
A.1000次
B.5000次
C.20000次
D.10000次
The statesman was evidently () by the journalist's questions and glared at him for a few seconds.
A.put down
B.put out
C.put across
D.put away