皮皮学，免费搜题
登录
搜题
【单选题】
从平卧位转为直立位时,出现头晕血压降低的原因是A.
微动脉舒张
B.
静脉潴留较多血液
C.
交感缩血管中枢紧张性降低
D.
心迷走中枢的紧张性升高
E.
心肌收缩无力
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
【单选题】Our Chinese teacher told us _____ interesting story and _____ story was about Thomas Edison. [ ]
A.
an; a
B.
the; the
C.
a; the
D.
an; the
【多选题】Which of the following statement is true about the story " The Cask of Amontillado"?
A.
It is a gothic story about the evil of human being.
B.
It is a horrible story about revenge and death.
C.
It is a story about murder.
D.
It's a story about corruption in capitalist society.
【简答题】The story about mail carriers shows that ______.
【简答题】What is this story about? Passage 2
【单选题】What is the main idea of the story?
A.
The story is about how Pete spent a wonderful Christmas with a little girl.
B.
The story is about a wonderful present that awakened in Pete a new love for others.
C.
The story tells about the love between Pete and Jean Grace's sister.
D.
The story tells about how sorrowful Pete was since he lost his girlfriend.
相关题目：