【单选题】列各项中,关于钢筋连接的基本规定不正确的说法是( )。
A.
钢筋的连接可分为绑扎连接、焊接和机械连接三种
B.
在任何情况下,纵向受拉钢筋绑扎搭接接头的搭设长度不应小于300mm,纵向受压钢筋的搭接长度不应小于200mm
C.
钢筋机械连接有钢筋套筒挤压连接、钢筋锥螺纹套筒连接、钢筋镦粗直螺纹套筒连接、钢筋滚压直螺纹套筒连接
D.
当受拉钢筋的直径d>22mm及受压钢筋的直径d>25mm时,不宜采用绑扎搭接接头
【单选题】关于细菌L型变异的描述,错误的是
E.
能够破坏肽聚糖结构或抑制其合成的物质都能使细菌形成L型
【单选题】下面有关需求拉动通货膨胀的描述,正确的是 。
B.
通常用于描述某种总需求的增长所引起的价格波动
【单选题】– Would you mind staying in such a noisy room? – No, but my son need a ______________ place to study in.
【判断题】世界上唯一规定器官买卖合法的国家是伊拉克。
【单选题】How can you play football in such a crowded street? I think you need a _______ place.
【单选题】听力原文: Have you ever tried beansprouts in a Chinese restaurant? All you need to grow these from the beans are a jar, a thin piece of cloth, a little water and a warm, dark place in the house. This is h...
【单选题】If you need a transfusion, the best and safest blood for you is______.
B.
exactly the same type as yours
C.
a mixture of salt, plasma and type O