The accuracy of scientific observations and calculations is always ______ the scientist' s time-keeping methods.
A: at the mercy of
B: in accordance with
C: under the guidance of
D: by means of
A: at the mercy of
B: in accordance with
C: under the guidance of
D: by means of
举一反三
- The accuracy of scientific observation and calculations is always at the mercy of the scientist's timekeeping methods. A: under the control of B: within the kindness of C: beyond the reach of D: out of the control of
- When a pilot is on board, the officer on watch should ______. A: always believe in the pilot’s guidance B: work under the pilot’s command all the time C: seek no clarification from the pilot D: notify the master when having doubts about the pilot’s guidance
- The scientist's work was based on _______. A: occasional observations B: systematic observations C: observations of several nests D: observations of undisturbed nests
- The scientist's work was based on______. A: occasional observations B: systematic observations C: observations of several nests D: observations of an undisturbed nest
- According to the author, to achieve full development of their child' s capacities parents should________. A: cooperate with the school in the field of traditional education B: take part in the child' s education under the guidance of the school C: urge the school to improve teaching methods D: reinforce comprehensive elevation on themselves