Millions of stars are ()
A: following a regular path in space
B: always travelling together
C: seldom wandering about in the universe
D: moving about without a fixed course
A: following a regular path in space
B: always travelling together
C: seldom wandering about in the universe
D: moving about without a fixed course
举一反三
- There are millions of stars in______ A: space B: a space C: the space
- Which of the following is NOT TRUE about a path plan?
- An analyst gathered the following information ($ millions) about the performance of a portfolio:（） A: 0.926 B: 0.998 C: 0.9286
- Ted spent all day ______ without doing anything useful. A: moving around B: going about C: messing around D: turning around
- The control volume is（ ） A: A system of a certain mass B: Space body with changed position and shape C: Fixed space body D: Space body with constant shape and moving position