中国大学MOOC: Rock climbing, in its early stage, became a sport for people with and heavy, thick ropes.
举一反三
- Rock climbing, in its early stage, became a sport for people with and heavy, thick ropes. A: bower anchor B: dutch courage C: sheer guts D: static ropes E: dynamic ropes
- 中国大学MOOC: The safest way to do rock climbing is to go to an indoor climbing gym .
- 中国大学MOOC: (3) Rock climbing is related to different kinds of dangerous movements on the rock face.
- 中国大学MOOC: (4) Rock climbing is not a physically, but a mentally demanding sport.
- ______ to catch fallers. Rock climbing is a physically and mentally demanding sport that tests a climber's strength,