下列各实验操作中，符合基本操作要求的是（ ）
A．
B．
C．
D．
A、根据液体药品的取用：取下瓶盖，倒放在桌上，（以免药品被污染）．标签应向着手心，（以免残留液流下而腐蚀标签）．拿起试剂瓶，将瓶口紧靠试管口边缘，缓缓地注入试剂，倾注完毕，盖上瓶盖，标签向外，放回原处，故选项A操作不正确；
B、天平的使用方法，右放砝码，左放物体，故选项B操作不正确；
C、根据固体药品的取用：取用粉末状或小颗粒状药品：一斜、二送、三直立；取用块状或大颗粒药品：一横、二放、三慢竖，故选项C操作正确；
D、滴管的使用：滴管悬空正上方，不可伸入不可触，取液不平不倒置，故选项D操作不正确；
故选C．
| 信息匹配。 | ||||||||||||
首先请阅读下列深圳书城的畅销书的封面及基本信息：
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| ( )1. This useful, popular book shows that if you are gone broke and lose love, please hold yourself back. If you look fat, just face it calmly. If you are ln survival thinking, the most important is that you get rid of all the difficulties in front of us, life will be safe, perfect. If your daughters are to take their rightful place in society, they must become fearless. ( )2. In this book, the author calls the nation's leading experts on violent behavior, and shows you how to spot even tiny signs of danger before it's too late. Most violent acts are unpredictable. It points out that true fear is often a signal that can save your life. Believe the threat of violence surrounds us every day. But we can protect ourselves by straight judgment. ( )3. This book based on his years of clinical experience. It says about twenty-five million Americans take medicine to avoid depression. Despite the advances in the treatment of depression in recent years, many patients, even with the best medical care, feel that they are not living rich and fulfilling lives. This book will direct you how to survive well. ( )4. This interesting book tells us that annoyance is as much a political matter as a biological one. And anger is a definite message: Pay attention to me. I don't like what you are dojng. Restore my pride. You're in my way. Give me justice. This book suggests that when you're angry, just let it right out. ( )5. This valuable book states that nervousness has become a constant factor in today's society like a sign of the times, but it is sometimes difficult to recognize the effects of anxiety on our mental health. The only way to feel better about ourselves is to go out and do it. |
