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河北省秦皇岛市海港区2024年初一新生学力水平测试英语

[db:作者] 2024-09-18试卷答案

河北省秦皇岛市海港区2024年初一新生学力水平测试英语试卷答案,我们目前收集并整理关于河北省秦皇岛市海港区2024年初一新生学力水平测试英语得系列试题及其答案，更多试题答

河北省秦皇岛市海港区2024年初一新生学力水平测试英语试卷答案,我们目前收集并整理关于河北省秦皇岛市海港区2024年初一新生学力水平测试英语得系列试题及其答案，更多试题答案请关注本网站

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1、河北省秦皇岛市海港区2024年初一新生学力水平测试英语选择部分

河北省秦皇岛市海港区2024年初一新生学力水平测试英语

9.What is the main benefit of the book the woman mentioned?A.Providing treatments for illnesses.B.Teaching exercise suitable in the gym.C.Improving thinking ability.

2、河北省秦皇岛市海港区2024年初一新生学力水平测试英语填空题部分

Their study, which appeared recently in the publication Science, is not the first to do such a complete genetic study of cancer samples. But no one has ever used such a large sample size.
Serena Nik-Zainal of the University of Cambridge was part of the team that did the research. She said this was “the largest cohort （群体）in the world. It is extraordinary.”
Over 12,000 samples in the study came from patients recruited （招募）by Britain’s National Health Service. They were part of a project to study whole genomes（基因组）from people with common cancers and rare diseases. The rest of the data came from existing cancer data sets.
Researchers were able to study such a large number because of the same improvements in technology that recently permitted scientists to complete the map of the entire human genome.
Andrew Futreal, a genomic expert at MD Anderson Cancer Center in Houston, was not involved in the study. He said the study gave scientists some knowledge of the destructive（破坏性的）forces that caused cancer.
Cancer is a disease of the genome or full set of instructions for running cells. It happens when changes in a person’s DNA cause cells to grow and divide uncontrollably. DNA is a substance （物质）that carries the genetic information in the cells of living things, like a human. In 2020, there were about 19 million new cancer cases worldwide.
For the study, researchers looked at 19 different kinds of cancer in the human body. It identified 58 new “mutational signatures,” or pieces of evidence leading to the causes of cancer. Nik-Zainal said researchers also confirmed 51 of more than 70 previously reported mutation patterns. Some arise （出现）because of problems within a person’s cells; others are caused by ultraviolet （紫外线的）radiation, tobacco smoke, or chemicals.