第20题: [单项选择]托姆斯颗粒层位于() A. 冠部牙本质透明层的内侧 B. 根部牙本质透明层的内侧 C. 釉牙本质界内侧 D. 牙本质小管周围 E. 牙本质钙化小球之间 参考答案:B
第21题: [填空题]During the earthquake the room (shake)()and all the pictures fell off the wall. 参考答案:shook 答案解析:
通常情况下,and引导的两个分句时态应保持一致。在本句中,后面分句用的是过去时态,所以前面的分句也应该用过去时态,例如:We were staging and dancing all eveni
第26题: [单项选择]The purpose of loosening the grip of the CEO office is to A. create a new leadership style. B. encourage open and controversial discussion. C. bring about a cultural revolution at Telekom. D. make swift and speedy decisions. 参考答案:C 答案解析:[解析] 事实细节题。根据题干中的loosening the grip of the CEO's office定位至第三段第四句,该句指出:通过减少CEO办公室对员工的控制,他希望为在、Telekom