动感美在舞台摄影中最具艺术魅力,也是最难把握的()。
A.表现形式
B.操作基本功
C.曝光技术
参考答案:A
缺铁性贫血所致粘膜组织变化和外胚叶营养障碍,其临床表现是:
A.口腔炎、舌炎、舌乳突萎缩
B.慢性萎缩性胃炎
C.胃酸缺乏
D.胃溃疡
E.杵状指
The()is a collection of modules serving as interface between hardware and software to provide a software platform.
A.computer
B.processor
C.application software
D.operating system