结果1 题目radioactive matter is dangerous to work with because it has a bad effect___ the blood. A. to B. fo C. in D. on 相关知识点: 试题来源: 解析 d 解析:have effect on是习语,意为“对……有影响”。 答案:d反馈 收藏
题目Radioactive matter is dangerous to work with because it has a bad effect___ the blood。 A. to B. fo C. in D. on 相关知识点: 试题来源: 解析 D 解析:have effect on是习语,意为“对……有影响”. 答案:D反馈 收藏
Radioactive matter is dangerous to work with because it has a bad effect___ the blood. A. to B. fo C. in D. on 答案 D解析:have effect on是习语,意为“对……有影响”。答案:D相关推荐 1Radioactive matter is dangerous to work with because it has a bad effect___ the blood. A. ...
Samuel Arbesman, a mathematician at Harvard, calls this "The Half-life of Facts", the title of his new book. In it he explains that this churn of knowledge is like radioactive decay: you cannot predict which individual fact is going to succumb to it, but you can know how long it take...
Over the course of Venus’ history several isotopes of noble gases have been produced by extinct (129I, 244Pu) and extant (e.g., 238U, 40K) radioactive nuclides present in the interior of the planet. When a portion of Venus’ crust or mantle melted these gaseous daughter nuclides ...
The longer half-life of 124I-mIBG allows serial scans to be performed over several days to track the biokinetics of the radiopharmaceutical. This might have predictive value for dosimetry prior to 131I-mIBG molecular radiotherapy.67 Role of functional imaging in biological target volume delineation...
The present invention relates to a container for conveying radioactive materials, comprising: a body unit which has an opened upper part and has receiving space formed therein; and a cap unit to cover and seal the body unit. A circular mounting groove is formed along the upper internal edge ...
Half-life:These medicines have short half-lives. From the moment they are created, they begin to decay. As the International Atomic Energy Agencyreports, the half-lives of radiopharmaceuticals can be anywhere from several days to just a matter of seconds. So some drugs need to be created with...
Overall, the rifting during the Paleogene period has resulted in the development of several northeast-southwest trending half-grabens, and subsequent seafloor spreading has resulted in the separation of several microcontinental blocks, including Reed Bank and Dangerous Grounds (Fig. 1) from the Chinese...
The radioactive isotope 137Cs is of great concern because it has a long half-life of 30.2 years. On the other hand, strontium is found present chiefly as Sr+2 in the aqueous environment and possesses quite a lot of radioactive isotopes. Of which, 90Sr with a half-life of 28.9 years ...