T、B细胞表面共有的标志是()。 A.补体受体 B.CD3 C.绵羊红细胞受体 D. 发布时间:2017-09-12 07:25 │ 来源:www.tikuol.com 题型:单项选择题 A1/A2型题 问题: T、B细胞表面共有的标志是()。A.补体受体B.CD3C.绵羊红细胞受体D.PWM-RE.CD80分子
题型:单项选择题 A1/A2型题 等差数列{an}的公差d<0,且a2•a4=12,a2+a4=8,则数列{an}的通项公式是( )A.an=2n-2(n∈N*)B.an=2n+4(n∈N*)C.an=-2n+12(n∈N*)D.an=-2n+10(n∈N*) 查看答案
题型:单项选择题 A1/A2型题 从方框中选择适当的选项补全对话,其中有一项是多余的。A: Look! Wang Tao! Who is that boy? B: Oh, he is my friend. A: 1 B: He comes from Fuzhou. A: Does he have short black hair? B: Yes, 2 He's tall and his clothes are nice. A: Is he Chen Ming? B: Yes, 3 And he is cool. A: 4 are these pants Chen Ming's? B: No, they aren't. They're mine. A: 5 B: I think they are green. A. Where does he come from? B. he does. C. Whose are these? D. you're right. E. Excuse me, F. What color are his pants? 查看答案
题型:单项选择题 A1/A2型题 稽留热()A.常见于登革热的热型B.常见于伤寒、大叶性肺炎的高热期的热型C.常见于流行性感冒的热型D.常见于败血症、伤寒缓解期的热型E.常见于疟疾、淋巴瘤的热型 查看答案
题型:单项选择题 A1/A2型题 以下说法正确的是( )A.浸没在液体中的物体受到浮力的作用,浮力的受力物体是液体B.浮力的方向总是竖直向上的C.压力的大小总是等于物体受到的重力的大小D.压力的方向总是竖直向下 查看答案