使用真空泵欲停泵时,在切断电源后,不能马上“破空”(即接通大气),以防泵油返压进入抽

题型:判断题

问题:

使用真空泵欲停泵时,在切断电源后,不能马上“破空”(即接通大气),以防泵油返压进入抽气系统。( )

考点:职业技术鉴定职业鉴定基础知识仪器管理
题型:判断题

香芎散功效与作用

题型:判断题

阅读下面短文并回答问题,然后将答案写到答题卡相应的位置上(请注意问题后的词数要求)。

[ 1 ] Do you spend over an hour each day texting messages to your friends? Do you frequently ignore work, study, and other activities to check your phone for messages? Are you anxious and restless if you are separated from your mobile phone,9 Do you hardly ever use your phone to talk any more, and do your thumbs hurt from texting too much?

[2] If                   , then it is very possible that you are a textaholic. A textaholic can be defined as someone who is addicted to sending and receiving messages. The main symptoms are a strong desire to text messages, which takes precedence (优先)over everything else, and bad moods, low spirits and a lack of self-confidence if messages fail to come in. The root of the problem, as with many addictions, is the desire to escape from emotional difficulties such as stress, atrxiety and relationship problems. Experts warn that text addiction is likely to become the most common form of addiction in the future, especially among the young.                                    

[3] So what can you do if you think you may be a textaholic? The key is to get your life back in balance. Make sure you resist the urge to answer every message you receive, and consider leaving your mobile phone behind occasionally when you go out. Most importantly, make a point of spending quality time with friends and family, and make time to re-learn the art of face-to-face conversation instead of conducting your relationships by means of text messages. Not only will you save time and money, but you may also rediscover the pleasure of true communication.

小题1: How does the author introduce the topic of the text? (no more than 5 words)

小题2: Fill in the blank in Paragraph 2 with proper words. (no more than 8 words)

小题3:What emotional difficulties may be the causes of text addiction? (no more than 5 words)

小题4:What do experts say about text addiction? (no more than 14 words)

小题5:What is the main idea of Paragraph 3? (no more than 8 words)

题型:判断题

男性,45岁,大便时突然剧烈头痛、恶心呕吐,为胃内容物,既往曾有一过性的右侧上睑下垂病史,急诊来院。

最可能的病因诊断是()

A.颅内肿瘤

B.颅内动脉瘤

C.颅内动静脉畸形

D.脑梗死

E.蛛网膜囊肿

题型:判断题

通过听骨链的杠杆作用,可使声压自锤骨柄传至前庭窗增加的倍数为

A.17倍

B.22.1倍

C.1.3倍

D.13倍

E.51倍

题型:判断题

飞机转弯时,为保持高度需要增大迎角,原因是()

A.保持升力垂直分量不变

B.用以使机头沿转弯方向转动

C.保持升力水平分量不变

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