X线片上牙周膜间隙的正常宽度为()。 A.0.18~0.25mm B.3~3.5mm

题型:单项选择题 B1型题

问题:

X线片上牙周膜间隙的正常宽度为()。

A.0.18~0.25mm

B.3~3.5mm

C.2.5~3.5mm

D.1~2mm

E.2mm

考点:口腔执业医师口腔执业医师考前冲刺(一)第一单元
题型:单项选择题 B1型题

在焊缝射线照相上黑度低于周围面积看上去非常明亮的缺陷为:()。

A.夹铜(钨)

B.夹杂

C.咬边

D.非金属夹杂物

题型:单项选择题 B1型题

()是衡量仪表质量优劣的最重要的指标。

A、灵敏度

B、灵敏限

C、精度等级

题型:单项选择题 B1型题

阅读理解

     For years I wanted a flower garden, but with five children I was too busy to have one. Money was

limited, and so was time. Often one of the children would want something that cost too much, and I

would say,  "Do you see a money tree outside? Money doesn't grow on trees, you know." Finally, when

all five had gotten through high school and college, and had started having their own families, I started

thinking again about having a garden. However, I knew gardens cost money.

     Then, one spring morning on Mother's Day, as I was working in my kitchen, I heard cars drive by and

looked out of the window to see a new tree planted in my yard. I couldn't believe my eyes: it was a money tree! Dollar bills were stuck all over that tree, and there was a note which read: "I owe you eight hours of

digging time. Love, Marvin."

     Marvin, my first son, kept his promise. He dug up a nice ten-by-fifteen-foot bed(花坛,花圃) for me. My other children bought me tools, a sunflower stepping stone(踏脚石) and gardening books. We built

a garden together.

     That was three years ago. My garden is now very pretty, and just what I'd always wanted. When I

go out to weed or tend my flowers, I don't seem to miss my children as much as I once did. It feels as if

they were right there with me. When I think about what my children have done for me, I get tears in my

eyes every time.

     I'm still not sure whether money grows on trees. But I know love does!

1. Why had the author never had a flower garden before?

A. Because she had five children to take care of.

B. Because she didn't have enough time and money.

C. Because her children wanted expensive things.

D. Because her children were going to high school and college.

2. Why doesn't she miss her children as much as she once did?

A. Because she has a big money tree.

B. Because she has a very pretty garden.

C. Because she feels the love of her children in the garden.

D. Because she is busy weeding or tending her flowers.

3. Which of the flowing statements is correct, based on the passage?

A. Money grows on trees only if you plant them with love.

B. The author built a pretty garden after her children had graduated from school.

C. The author actually wanted to have money grow on trees.

D. The children loved their mother so much that they helped her realize her dream.

4. The purpose of this passage is to tell us_________.

A. how to grow you own money tree

B. the story of pretty garden

C. the story of a money tree

D. a story of the love between a mother and her children

题型:单项选择题 B1型题

男,35岁。在印染厂工作。工作中突然感到头痛、胸闷、心悸。查体:呼吸26次/分,心率120次/分,律齐。尿液呈棕褐色

已确诊为苯胺中毒,应尽快使用()

A.美蓝

B.阿托品

C.肾上腺素

D.吸氧C输液支持治疗

E.以上均不正确

题型:单项选择题 B1型题

从计算机的逻辑组成来看,通常所说的PC机的“主机”包括( )。

A.中央处理器(CPU)和总线

B.中央处理器(CPU)和主存

C.中央处理器(CPU)、主存和总线

D.中央处理器(CPU)、主存和外设

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