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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】下列数字视频中，__________质量最好。
A.
640′480 分辨率、16位真彩色、15帧/秒的帧率
B.
320′240 分辨率、30位真彩色、30帧/秒的帧率
C.
320′240 分辨率、30位真彩色、25帧/秒的帧率
D.
240′180 分辨率、24位真彩色、15帧/秒的帧率
【单选题】In department stores and closets all over the world, they are waiting. Their outward appearance seems rather appealing because they come in a variety of styles, textures, and colors. But they are ulti...
A.
The multi-functional use of high heels.
B.
Their attempt to show off their status.
C.
The rich variety of high heel styles.
D.
Their wish to improve their appearance.
【单选题】刘女士，65岁，退休干部，平日缺乏体育锻炼，口味偏咸，身高155cm, 体重70kg,确诊高血压，肾功能不良。医生建议其増加运动，下列不适合刘女士身体活动 的是：()。
A.
举重
B.
太极拳
C.
步行
D.
'游泳