足球颠球是指运动员用身体的各个有效部位连续触击球,并加以控制尽量使球不落地的技术动作。
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足球运球的形式有直线、曲线、折线、折返等。
A. 对
B. 错
The keyboard, mouse, display, and system unit are:
A. hardware
B. output devices
C. storage devices
D. software
Programs that coordinate computer resources, provide an interface, and run applications are known as:
A. application programs
B. operating systems
C. storage systems
D. utility programs
工程图学课程理论严谨与工程实践联系密切。
A. 对
B. 错