200 points for typing and 50 points for reward

It's a good deal to get to the back.

It would be nice to copy it. Ha ha.

A typist has typed 1,600 words, exactly 40% of the full text (1) How many words are there in the whole text? (2) How many words are left untyped?

Test Center: Percentage application questions

Analysis: (1) The number of words shared in the whole text is regarded as the unit "1", 40% is typed, and 1600 words are typed, and the corresponding number of "" corresponding to the score = the amount of the unit "1" can be answered; (2) Find how many words have not been typed, and subtract the number of words that have been typed from the total number of words in the full text

Answer: Solution: (1) 1600 40%=4000 (pcs); A: The full text has a total of 4,000 words;

2) 4000-1600=2400 (pcs); A: There are still 2,400 words left untyped

Comments: The knowledge points used to answer this question: Determine the unit "1", and answer it according to the corresponding number of "" corresponding fractions = the amount of unit "1".

Solution: Let the total number be x

Then it is: x 40 = 1600 can also be: 1600 40 = 4000

Solution: x=1600 40

x=4000

If you think of the total as 40 of the total number of hits in unit 1, it means that there are still 60 1-40 = 60 that have not been hit.

Last direct: 4000 1-40

2400 pcs

A: There are 4,000 words in the full text, and there are still 2,400 words that have not been typed.

1.Solution: Let the full text have x words.

40%x=1600

x=4000

A: The full text is 4,000 words in total.

2.Total number of words - typed = untyped.

4000-1600=2400 (words).

A: There are still 2,400 words left untyped.

I'm in my first year of junior high school, so this is very simple for your reference

(1) Set a total of x characters.

x*40%=1600

x=4000

or 4000-1600=2400

This should be easier to understand.

Hello: (1) How many words are there in the full text?

1600 40%=4000 (pcs).

(2) How many words are left untyped?

4000-1600=2400 (pcs).

1600÷100%-40%=60%

The full text is 4,000 words, and there are 2,400 words.

Let the full text be x, then follow the equation x 4000 according to the meaning of the topic, then the remaining words are 4000-1600=2400

1600 40%=4000 (pcs).

4000-1600=2400 (pcs).

Think of the total as a unit of 1

Some 2bs do the math themselves, hahahahaha.

Module 3 Commonly used injectable drug nursing.

1. Definition: The method of injecting a certain amount of sterile liquid into the body is fast absorption, accurate dosage and quick onset.

Application: Patients who need to act quickly, but should not take the drug.

Second, the principle of injection.

a) Strictly abide by the principle of sterility.

1.The environment is quiet and clean, and there will be aseptic operation requirements.

2.Workers, wash their hands and wear masks.

3.Injection site: Routine sterilization.

Routine disinfection. 2% iodine tincture, 70% ethanol. Disinfection from the center to the periphery, with a diameter of about 5cm (two), strictly implement the inspection system.

1.Strictly implement the "three checks and seven pairs" to make mistakes.

2。Carefully inspect the quality of the drug (turbidity, precipitation, deterioration, discoloration. Do not use if the expiration date is exceeded or if there are cracks in the Abe or sealed bottles).

3.Check the quality of single-use sterile items.

4.At the same time, inject the machine drug, pay attention to the "coordination contraindication".

3) Strictly implement the disinfection and isolation system.

1.One set of items per person.

2.All items are soaked and disinfected before processing. Disposable items should be disposed of according to the regulations of the hospital and should not be discarded at will.

4) Choose the appropriate syringe and needle.

1.According to the situation of the liquid medicine, select the appropriate syringe and needle at the injection site2The packaging is complete without cracks and no air leakage.

3.Suitable for the model sharp, no hook, no rebending.

4.Syringes and needles are tightly connected.

5.The packaging of the disposable syringe is so tight that there is no air leakage, and within the validity period (5) select the appropriate injection site.

1.Avoid neurovascular.

2.Avoid the hard transmission of real diseases, scars and diseases.

6) Grip comfortably at the angle and depth of needle insertion.

1.Do not pierce the needle.

7) The injection solution should be used and dispensed at the ready.

1.Prevent the reduction of drug effectiveness or contamination (especially antibiotics) (8) Exhaust the air to prevent accidents.

1.The air in the syringe must be drained before injection to prevent the air from entering the blood vessel and forming embolism2Exhaust gas prevents wasting of chemicals.

9) Check the blood return and push the medicine slowly.

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