皮皮学，免费搜题
登录
搜题
【单选题】
Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A, B, C and D, and decide which is the best answer. (12)A.
Because it is very beautiful there.
B.
Because there is a flower show there.
C.
Because it is more quiet and peaceful there.
D.
Because no one can hear them talking there.
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】()是组成()的()几何单元。
【单选题】以下有关伯努利方程的描述,错误的是
A.
伯努利方程针对理想流体的定常流动
B.
伯努利方程体现p、v、h三者间的关系
C.
在等高条件下，p和v成反比
D.
伯努利方程适用于同一条流线