Under normal circumstances, people should count in the following order:
One, two, three, four, five, six, seven, eight, nine.
The order listed in the question is just the opposite, that is, counting backwards.
The answer should be "reciprocity".
(2)∵ "Go hand in hand" consciousness is
All aspects are carried out at the same time, that is, all aspects remain parallel.
The answer is "parallel".
(3) According to the common sense of life,
After the doctor has diagnosed the patient, he will prescribe the right medicine for the patient, that is, prescribe a prescription for the patient.
Again: this question needs to be entered with a mathematical noun.
∴ The answer should be "prescribing".
(4) According to the common sense of life,
When flying a kite, the kite will fly away only if the thread is broken.
Again: this question needs to be entered with a mathematical noun.
The answer to ∴ should be "line segment".