耳蜗毛细胞去极化感受器电位的产生机制是() A.K+经机械门控通道内流增加 B.Na

题型:单项选择题

问题:

耳蜗毛细胞去极化感受器电位的产生机制是()

A.K+经机械门控通道内流增加

B.Na+经机械门控通道内流增加

C.Ca2+经机械门控通道内流增加

D.Ca2+经电压门控通道内流增加

E.Na+经电压门控通道内流增加

考点:临床医学检验临床医学检验综合练习临床医学检验综合练习题库
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Mr. Brown was going away for a week. Before he left, he said to his son, "if anyone asks for me, you can tell him that your father has been out for doing something, and will be back in a week, then be sure to ask him to sit down for a cup of tea."

"OK, Dad," said his son. But he was afraid his son couldn’t remember this, he wrote these words down on a piece of paper and gave it to him. His son put it into his small pocket, took it out and looked at it every now and then.

Four days passed, but no one came to see his father. The boy thought that there was no man to come and that the piece of paper was of no more use for him, so he burnt it that evening.

The next afternoon, someone knocked at the door. The boy opened it. A man was standing at the door and said, "Where is your father?" The boy put his hand into his pocket at once and looked for the piece of paper. He could not find it. He suddenly remembered he had burnt it, so he shouted, "No more."

The man was very surprised. He asked, "No more? I met your father last week. When did it happen?" "Burnt yesterday evening."

小题1:Mr. Brown told his son that _____.

A.he would be away from home for four days

B.he would be back in seven days

C.he would be back in a month

D.he liked a cup of tea小题2: Mr. Brown wrote the words down on ________.

A.the wall

B.the door

C.a piece of paper

D.his son’s pocket小题3:A man came to visit the boy’s father on ________.

A.the second day

B.the third day

C.the fourth day

D.the fifth day小题4:The man was very surprised because _________.

A.he thought the child’s father was dead

B.the child didn’t ask him to sit down

C.the child gave him a cup of tea

D.he couldn’t find that piece of paper小题5:What was burnt? ___________.

A.The piece of paper.

B.Mr. Smith.

C.The visitor.

D.The boy.

题型:单项选择题

发票的领票方式有下列哪些方式()

A、分次供应

B、批量供应

C、交旧购新

D、验旧购新

题型:单项选择题

压力容器的法兰垫片不能使用石棉橡胶板的是()。

A.液化石油气储罐

B.液氨储罐

C.液氯储罐

D.真空容器

题型:单项选择题

何谓“白噪声”?何谓“1/f噪声”?要降低电阻的热噪声应采用什么措施?

题型:单项选择题

28岁经产妇,人工流产术后8个月,术后不断有 * * 流血,量不多,阴茎套避孕。现尿妊娠试验阳性,胸部X线片见两肺中下叶散在浅淡半透明圆形阴影及棉花团影。本例最可能的诊断为().

A.葡萄胎

B.侵蚀性葡萄胎

C.绒毛膜癌

D.吸宫不全

E.先兆流产

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