皮皮学，免费搜题
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搜题
【单选题】
Directions: In this section, you will hear two long conversations. At the end of each conversation, you will hear four questions. Both the conversation and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Conversation One Questions 5 to 8 are based on the conversation you have just heard.A.
The cooling fan has broken.
B.
The engine does not have enough oil.
C.
The water level is too low in the radiator.
D.
The woman does not often get her car serviced.
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】关于三尖瓣的叙述，错误的是
A.
三尖瓣位于右房与右室之间
B.
三尖瓣由瓣叶、腱索、乳头肌构成三尖瓣复合体
C.
三尖瓣分前叶、后叶及隔叶
D.
三尖瓣瓣环将房室间隔膜部分成两部分
E.
三尖瓣环位置较二尖瓣环低
【简答题】对于有意义学习,罗杰斯认为主要有哪中个要素?