题目内容

In either case, you see__________-(全动态图片), hear clear voices and work together using the systems’ applicationtools.

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By bringing the naturalness and interactivity of_____________(现场会议) to dial-up video conferencing, group systems give geographically-dispersed organizations the power to address issues and opportunities in an expedited fashion, to involve more people in important discussions, and to foster a more open and collaborative working environment.

速度攀岩一般使用哪种类型的攀岩鞋？

A. 系带式
B. 拖鞋式
C. 粘扣式

攀岩时涂抹镁粉的作用是？

A. 保护手指
B. 吸收汗液，增大摩擦力
C. 为岩点做标记

价格越高的攀岩鞋功能越强大，所以越贵的攀岩鞋越能提高攀爬水平

A. 对
B. 错