不属于细菌基本结构的成分是() A.细胞壁 B.细胞膜 C.细胞质 D.细胞核 E. 发布时间:2020-05-16 20:14 │ 来源:www.tikuol.com 题型:单项选择题 A1/A2型题 问题: 不属于细菌基本结构的成分是()A.细胞壁B.细胞膜C.细胞质D.细胞核E.核质
题型:单项选择题 A1/A2型题 下列有关牙龈病变的叙述,错误的是()A.牙龈水肿见于慢性牙周炎B.牙龈缘出血见于牙石或全身性疾病C.牙龈挤压后有脓液溢出,见于牙龈瘘管D.牙龈的游离缘出现黑褐色点线称铅线,为铅中毒的表现E.砷中毒可在牙龈的游离缘出现类似的黑褐色点线状色素沉着 查看答案
题型:单项选择题 A1/A2型题 Questions 14-23 ·Look at the ten statements for this part. ·You will hear a passage about "the number of genes ". You will listen to it twice. ·Decide whether you think each statement is right(R), wrong(W) or not mentioned(NM). ·Markyour answers on the Answer Sheet.Scientists say they only found the list of the genes that control human biology.A.RightB.WrongC.Not Mentioned 查看答案