第4套人民币的拾元券、伍元券、壹佰元券均采用了()部位水印。
A、固定
B、一定
C、不相同
D、不定
参考答案:A
Their bright eyes and smiling faces_______the impression that they were very excited.
A.determined
B.conveyed
C.shaped
D.functioned
将热炉按用途分为()、()。按传热方式分为()、()、()。