简述闭口杯法测定闪点的过程。

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问题:

简述闭口杯法测定闪点的过程。

考点:资格类灰化检修工(初级)灰化检修工(初级)题库
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阅读理解。

     Ann is my good friend. She is twenty-three years old. And she doesn't live in China. She lives in Canada. She is a

nurse. She  often   gets  up  early  every morning.   She goes to work at   7:30.   She doesn't have breakfast. She has a

sandwich and some fruit for lunch in a small restaurant. She goes home at 5 o'clock in the afternoon.   On Saturday,

she often comes to see me.

1. Ann lives in __________.

A. China      

B. Canada  

C. England      

D. the USA

2. Ann is a __________.

A. teacher      

B. nurse      

C. doctor      

D. student

3. Ann goes to work at __________.

A. 7:30 am    

B. 8:30 am  

C. 5:00 pm  

D. 5:30 pm

4. Ann has __________ for lunch in a small restaurant.

A. some dumplings      

B. a hot dog    

C. a sandwich and some fruit  

D. a bowl of noodles

5. Ann often comes to see me __________.

A. on Friday      

B. on Monday  

C. on Sunday      

D. on Saturday

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消心痛属于

A.硝酸酯类
B.Ca2+通道拮抗剂
C.其他
D.β-受体阻滞药

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下列哪项不是龈下边缘的优点

A.增加固位力

B.龋变机会少

C.刺激牙龈

D.美观

E.以上都不是

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能有效地打破物种的界限,定向地改造生物的遗传性状,培育新的农作物优良品种的生物技术是()

A.基因工程技术

B.诱变育种技术

C.杂交育种技术

D.组织培养技术

题型:问答题 简答题

在下列抗休克措施中,错误的是()。

A.吸氧,输液

B.置热水袋加温

C.平卧位

D.测每小时尿量

E.测中心静脉压

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