第24题: [单项选择]{{B}}Questions 11 to 18 are bused on the conversation you have just heard.{{/B}} A. The test was harder than he had anticipated. B. He was lucky to pass the biology test. C. Professor Martin is known for giving hard tests. D. He has never failed in biology. 参考答案:A 答案解析:[听力原文]
W: Don’t you think Professor Martin’s test was too difficult
M: Well, I must admit I had b
第25题: [单项选择]合成和分泌雄激素的是() A. 睾丸支持细胞 B. 生精小管 C. 睾丸间质细胞 D. 附睾 E. 精囊 参考答案:C 答案解析:
[解析] 间质细胞的基本功能是合成和分泌雄激素。
第26题: [单项选择]关于无牙颌上颌结节的叙述,正确的是() A. 牙槽嵴两侧的圆形骨突 B. 上颌结节颊侧多有明显倒凹 C. 义齿基托不应覆盖结节颊面 D. 基托在结节远中尽量伸展 E. 上颌结节是主承托区 参考答案:B 答案解析:上颌结节是上颌牙槽嵴两侧远端的圆形骨突,表面覆盖黏膜。颊侧多有明显倒凹,与颊黏膜间形成颊间隙。义齿基托应覆盖整个结节颊面。并尽量伸展以增加固位。全口义齿的主承托区应为牙槽嵴顶。选项A、C、D、E错,只