当脉冲当量为0.001时,小数点后面的数值一般不超过()位。A、2 B、3 C、4 D、5

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问题:

当脉冲当量为0.001时,小数点后面的数值一般不超过()位。

A、2

B、3

C、4

D、5

考点:机加取制样工考试机加取制样工(中级)机加取制样工(中级)题库
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下列与实验相关的叙述正确的是(  )

A.稀释浓硫酸时,应将蒸馏水沿玻璃棒缓慢注入浓硫酸中

B.配制溶液时,若加水超过容量瓶刻度,应用胶头滴管将多余溶液吸出

C.酸碱滴定时,若加入待测液前用待测液润洗锥形瓶,将导致测定结果偏高

D.检验某溶液是否含有SO42-时,应取少量该溶液,依次加入BaCL2溶液和稀盐酸

题型:单项选择题

“既不肯定SEP式的判断,又不肯定SIP式的判断。”这一议论______

A.只违反矛盾律
B.只违反排中律
C.只违反同一律
D.既违反矛盾律,又违反排中律

题型:单项选择题

阅读理解。

     Nowadays, most of us live a busy life. What do you do to keep yourself relaxed?

Besides spending time with family, having a glass of wine with friends or reading a book,

how about a hobby?

     Personally, I'm a collector. I like blue and white pieces the best---blue and white

anything﹗Plates,jars,vases, cups, bowls---I love them all. Collecting items is like

something you can't get enough of. You get one, and you want to have more.

     I find collecting to be a fun and inspirational hobby. In many ways, it's like a puzzle

I'm never tired of solving. I look high and low for new pieces to add to my collection. I

can often be found visiting Marshell's, looking over their inexpensive offerings. In fact, I

found one of my favorite pieces there.

     I've mixed inexpensive pieces from Marshell's with more expensive finds. A lot of times,

it's the piece I'm not looking for that falls into my lap; I find a way to make it part of my

blue and white family. What I love about my collection is that when I get inspired, I can

move them around the house, mix and match and make things look fresh and new.

     Ever since I was a little girl, blue has been my favorite color. I think I got it from my

aunt in Mexico. Some of my earliest memories are visiting her in Mexico and sitting on a

chair in her kitchen, which had blue and white tiles(瓷砖)from the floor to the ceiling. I

would spend countless hours admiring all the beautiful blue and white plates and shiny blue

tiles around her kitchen. Once I had a home, I began to build my own blue and white

collection.

1. We can infer that in the writer's opinion,_____________.

A. having a hobby can help us relax

B. reading a book alone is really boring

C. keeping a hobby is not easy for most of people

D. having a glass of wine with friends is not a good idea

2. What does the underlined sentence in Paragraph 2 probably mean?_____

A. Collecting things requires a lot of money.

B. People always want more than they need.

C. People may not know what they want to collect.

D. Once you start collecting things, it's hard to stop.

3. If something falls into your lap, it means you_________.

A. have been looking for it

B. don't know what it is

C. get it unexpectedly

D. like it very much

4. What's the last paragraph mainly about?_____

A. When the writer started collecting things.

B. When the writer started liking blue things.

C. What kind of thing the writer collected first.

D. Why the writer liked her aunt's things so much.

题型:单项选择题

具有一定程度拥挤性的是( )。

A.准公共物品

B.纯公共物品

C.垄断物品

D.私人物品

题型:单项选择题

患者女性,62岁,高血压病4年,4小时前突然感到头痛、呕吐,家人发现两侧肢体轻微抽搐。查体:血压230/130mmHg,意识尚清,无肢体运动障碍。最可能的诊断是

A.脑出血
B.脑栓塞
C.高血压脑病
D.恶性高血压
E.蛛网膜下腔出血

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