皮皮学，免费搜题
登录
搜题
【简答题】
激光诱导气相化学反应法是利用激光光子能量加热反应体系来制备纳米颗粒的一种方法，其基本原理是利用大功率激光器的激光束照射于反应气体，反应气体通过对入射激光光子的强吸收，气体分子或原子在瞬间得到加热、活化，在极短的时间内完成 等过程，从而制得相应物质的纳米颗粒。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】By saying 'Im glad I wasnt their dog', the author means that ______.
A.
those scientists know little about the feelings of animals
B.
feelings can scarcely be studied with a microscope
C.
few scientists know what it feels like to be a dog
D.
animals are often mistreated by scientists
【简答题】阅读理解。 Talking Dog: Body Language Understand what dogs are 'saying' It's important to understand what dogs are saying with their bodies, not only to know your own dog but to better predict what other d...
【单选题】In the second paragraph, the writer talks about someone saying, 'You are a lucky dog.' He is saying that ______.
A.
the speaker of this sentence is just being friendly
B.
this saying means the same as 'You are a lucky guy' or 'You are a lucky gal'
C.
the word dog should not be used
D.
sometimes the words used by a speaker give a clue to the feeling behind the words
【简答题】某公司打算向它的三个营业区增设六个销量店，每个营业区至少增设一个。从各区赚取的利润(单位：万元)与增设的销售店个数有关，其数据如下。 试求各区应分配几个增设的销售店，才能使总利润最大，其值是多少?
【单选题】某公司打算向它的三个营业区增设六个销售店，每个营业区至少增设一个。各营业区年增加的利润与增设的销售店个数有关，具体关系如表18—3所示。可以调整各营业区增设的销售店的个数，使公司总利润增加额最大达( )万元。[*17]
A.
520
B.
490
C.
470
D.
510
相关题目：