光镜下判断细胞是否坏死，主要观察
A．细胞形态的改变B．染色质形态的改变C．细胞质形态的改变D．细胞核形态的改变
参考答案：D
Since the opening and reform policy, China a boom in its economy.
A．enjoys
B．has been enjoying
C．enjoyed
D．having enjoyed
异位妊娠最常见的发生部位是（）
A.输卵管
B.卵巢
C.宫颈
D.腹腔
E.阔韧带
