题目

下图是一个发育中的鸡卵，图中“发育中的幼雏”是由什么发育而来的                                  发育中的幼雏     A．胚盘                 B．卵黄                       C．卵白                      D．系带 答案：A() 32,The 2015 National Youth Games was held in Fuzhou. Ji Xinjie did in men,s 200-meter freestyle and won the gold medal.   A. good   B. well   C. better   D. best