The main costs of space exploration ______ the fact that we are set on sending humans, rather than robots.
A: esult in
B: arise from
C: owe to
D: ecause of
A: esult in
B: arise from
C: owe to
D: ecause of
举一反三
- What is the fact of NASA’s manned space exploration program?
- If the social value of producing robots is greater than the private value of producing robots, the private market produces too few robots.
- Exploring [u] [/u] space is exciting, yet dangerous. There is [u] [/u] need for both robots and humans for space exploration. A: the; a B: a; a C: /; a D: /; the
- The fact that space exploration has increased dramatically in the past thirty years _____.
- As long as we alive, we are learning and, in fact, some of our most important learning takes place outside of school ______in school. A: better than B: rather than C: other than D: more than