22. 다음 글의 밑줄 친 부분 중 어법상 틀린 것은?
While manned space missions are more costly than unmanned 1) ones, they are more successful. Robots and astronauts use 2) much of the same equipment in space. But a human is much more capable of operating those instruments correctly and 3) to place them in appropriate and useful positions. Rarely 4) is a computer more sensitive and accurate than a human in managing the same geographical or environmental factors. Robots are also not equipped with capabilities like humans to solve problems 5) as they arise, and they often collect data that are unhelpful or irrelevant. (90 words)