10kV及以下(13.8)电压等级,设备不停电时的安全距离是()。A、0.4m B、

题型:单项选择题

问题:

10kV及以下(13.8)电压等级,设备不停电时的安全距离是()。

A、0.4m

B、1.0m

C、0.7m

D、0.6m

考点:电力安全生产知识竞赛电力安全生产知识竞赛题库
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会计职业道德的内在教育是()。

A.接受教育

B.自我教育

C.社会教育

D.广播教育

题型:单项选择题

全身应用广谱抗生素2周,创面有霉斑,怀疑真菌感染,最有特殊意义的检查是

A.新鲜中段尿直接镜检

B.血培养

C.创面涂片革兰特殊染色检查

D.创面涂片PAS特殊染色检查

E.坏死组织冷冻切片检查

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As an experienced photojournalist in Nashville, Tennessee, I was hired by USA Today newspaper to photograph a spinal bifida (脊柱畸形) corrective surgical procedure. It was to be performed on a twenty-one week old fetus(胎儿)in uterus(子宫)at Vanderbilt University Medical Center. At that time, in 1999, twenty-one weeks in uterus was the earliest that the surgical team would consider for surgery. The worst possible outcome would be that the surgery would cause premature delivery, and no child born earlier than twenty-three weeks had survived.

The tension could be felt in the operating room as the surgery began. A typical C-section cut was made to access the uterus, which was then lifted out and laid at the junction of the mother’s thighs(大腿). The entire procedure would take place within the uterus, and no part of the child was to breach the surgical opening. During the procedure, the position of the fetus was adjusted by gently moving the outside of the uterus. The entire surgical procedure on the child was completed in one hour and thirteen minutes. When it was over, the surgical team breathed a sigh of relief, as did I.

As a doctor asked me what speed of film I was using, out of the corner of my eye I saw the uterus shake, but no one’s hands were near it. It was shaking from within. Suddenly, an entire arm thrust out of the opening, then pulled back until just a little hand was showing. The doctor reached over and lifted the hand, which reacted and squeezed the doctor’s finger. As if testing for strength, the doctor shook the tiny fist. Samuel held firm. I took the picture! Wow! It happened so fast that the nurse standing next to me asked, “What happened?” “The child reached out,” I said. “Oh. They do that all the time,” she responded.

The surgical opening to the uterus was closed and the uterus was then put back into the mother and the C-section opening was closed.

It was ten days before I knew if the picture was even in focus(对焦). To ensure no digital manipulation(篡改) of images before they see them, USA Today requires that film be submitted unprocessed. When the photo editor finally phoned me he said, “It’s the most incredible picture I’ve ever seen.”

小题1:What may be the best title for the passage?

A.An Amazing Moment

B.A Pitiful Fetus

C.An Honorable Job as a Photographer

D.An Impressive Surgeon小题2:In 1999, people believed that it was ________.

A.possible for a fetus 21 weeks born to survive

B.likely for a fetus born 21 weeks to become abnormal

C.right time for a fetus born 21 weeks to receive an operation

D.risky for a fetus 21 weeks in uterus to receive an operation小题3:From the second paragraph, we can see that the surgery was ________.

A.challenging but successful

B.demanding and unsuccessful

C.simple and short

D.long-lasting and difficult小题4:The underlined “It” in paragraph 3 refers to ________.

A.the uterus

B.the arm of the fetus

C.the picture

D.the head of the fetus小题5:From what the editor said in the last paragraph, we know he was very ________.

A.disappointed

B.satisfied

C.confident

D.depressed

题型:单项选择题

四环素的抗菌谱除外

A.肺炎球菌
B.结核杆菌
C.脑膜炎双球菌
D.立克次体
E.支原体

题型:单项选择题

试分析产生下列变异性状。

在红色的菊花株上伸展出一枝开白花的枝条,被人们称之为“一枝独秀”,这个开白花枝条形成的最可能原因是()

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