单项选择题 为了强化蒸发过程，工业上采用的蒸发设备都是在（ ）状态下汽化。

单项选择题 当均匀晶体中引入第三组元时，并导致扩散介质产生了晶格畸变，则扩散系数         。 A、降低 B、增加 C、不变 D、-

单项选择题 A 3-month-old has been admitted to the hospital with a newly diagnosed ventricular septal defect. She is in early congestive heart failure and digoxin is indicated. After discussing the proper dose with the attending physician, you write an order for the drug. Thirty minutes later the baby vomits and then has a cardiac arrest and dies. You discover that in writing the digoxin order you misplaced the decimal point and the child got 10 times too much digoxin. What is your duty here