【单选题】党领导人民治理国家的基本方略是 ,党治国理政的基本方式是 。 ( )
【多选题】B1 细胞的主要功能为( )
B.
产生特异性高、亲和力强的抗体,阻止病原体与靶细胞的结合
C.
产生特异性高、亲和力强的抗体,促进吞噬细胞对病原体的吞噬清除
【单选题】钢柱底部安放垫铁时,每组垫铁的块数不应超过( )
【判断题】板桥一般建筑高度小,适用于桥下净空受限制的桥梁。
【单选题】What was the result of the changes boo. com made after Christmas 1999?
A.
Their website was much expanded.
B.
Their spending was cut by 40 percent.
C.
Their sales improved slightly.