A: 正确
B: 错误
举一反三
- When KMnO4 is used to determine the content of calcium in calcium salt, the indicator used is methyl orange. A: 正确 B: 错误
- In<br/>the acid-base titration of aspirin, neutral ethanol is required to be<br/>used as the solvent. What is the meaning of calling "neutral"?() A: neutral<br/>to the indicator used B: pH=7 C: ethanol<br/>to remove acidic impurities D: It<br/>is neutral to methyl orange E: relative<br/>to the tested substance
- The most commonly used drugs for cardiopulmonary resuscitation is() A: isoproterenol B: Atropine C: lidocaine D: calcium chloride E: adrenaline
- Which<br/>can be seen in CRF patient about calcium and phosphate() A: calcium↓<br/>phosphate↑ B: calcium↑<br/>phosphate↓ C: calcium↓<br/>phosphate↓ D: calcium↑<br/>phosphate↑ E: none of above
- This is _____ orange, ____ orange is orange.
内容
- 0
When did people begin to realize the value of salt A: When they used salt to melt snow. B: When they started to preserve food with salt. C: After they found animals licking salt. D: After they found salt's magical powers.
- 1
The main function of calcitonin is A: increase blood calcium and blood phosphorus B: decrease blood calcium and blood phosphorus C: decrease blood calcium and increase blood phosphorus D: increase blood calcium and decrease blood phosphorus E: involve in the normal calcium regulation
- 2
The following statements , _____, illustrate the functions of calcium. A: nerve cells need calcium for nerve impulse conduction B: muscle needs calcium to contract C: blood needs calcium to clot D: bone needs calcium to make itself hard
- 3
The treatment sequence for tetany of vitamin D deficiency is:( ) A: control convulsion→calcium supplement→vitamin D B: calcium supplement→control convulsion→vitamin D C: vitamin D→calcium supplement control→ convulsion D: vitamin D→control convulsion→calcium supplement
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is used to determine customer service levels.