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【单选题】
数控机床首件试切使用( )键。
A.
选择1
B.
选择2机床锁住
C.
选择3 跳转
D.
选择4空运行
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【判断题】若函数f(x)在(a,b)内单调递增,且在(a,b)内可导,则必有f’(x)>0.
A.
正确
B.
错误
【单选题】According to the passage, which of the following statements is not true?
A.
Although it is easy to travel around the world now, real contact is impossible as a result of our inability to communicate.
B.
To overcome the language barrier, people all over the world welcome one of the major languages to be universal.
C.
People are afraid of losing their own languages as a result of the domination of major foreign languages.
D.
There are numerous misunderstandings in people's contacts.
【多选题】患者男,20岁,大学生,因“打篮球时突然跌倒在地、口吐白沫、面色发绀、一过性意识丧失伴尿失禁3h”由同学急呼120送入院。120医师给予吸氧、镇静处理。头痛,全身乏力,无恶心、呕吐。既往无类似发作。查体:T36.5℃,P80次/min,R20次/min,BP130/70mmHg;意识清楚;消瘦;左侧枕部一3cm×4cm皮下血肿;四肢肌力、肌张力均正常。脑电图:异常。颅脑CT:未见出血。患者对该病不...
A.
潜在窒息
B.
受伤的危险
C.
知识缺乏
D.
焦虑
E.
潜在药物不良反应
F.
角色强化
【单选题】阅读以下文字,完成16~20题。 日本这次大灾难让所有人对科技文明的脆弱有了深刻的体验。现代人看上去很强大,他能建核电站,能建规模很大、功率很高的水电站,因为他有许多关于这方面的科技知识,但仅仅这些知识对人类的存在就是真理吗?显然不是,只有当这种技术的后果呈现在人类面前,被人类充分意识到.人类才看到自然向我们敞开的完整真理,黑格尔说:“真理是整体的”就有这个意思。“改造自然”是科技文明的一个基本观...
A.
对抗扭转撞击
B.
抗衡阻遏撞击
C.
对抗阻遏碰撞
D.
抗衡扭转碰撞
【单选题】患者,男性,27岁,今早不慎被车撞倒,头部受到创伤,意识丧失,20分钟后清醒,自觉头痛、头晕,对受伤当时的情况没有记忆,你认为该患者最有可能发生了()
A.
脑挫伤
B.
脑震荡
C.
脑水肿
D.
脑出血
【单选题】Please read the following paragaraph, and find out How the writer develops the paragraph? The internet has been offering a tremendous assistance to its users in terms of communication. To start with, ...
A.
with comparison and contrast
B.
with a combination of examples, comparison and contrast and cause-and-effect pattern
C.
with examples
D.
with cause-and-effect pattern
【简答题】短文填词。 In the past hundred years, there have been frequent natural disasters, ______ as floods, droughts, earthquakes. The disasters have killed m______ of people, destroyed countless homes, and wiped ...
【单选题】The case for college has been accepted without question for more than a generation. All high school graduates Ought to go, says conventional wisdom and statistical evidence, because college will help ...
A.
people used to question the value of college education
B.
people used to have full confidence in higher education
C.
all high school graduates went to college
D.
very few high school graduates chose to go to college
【单选题】阅读以下文字,完成41-45题. 日本这次大灾难让所有人对科技文明的脆弱有了深刻的体验.现代人看上去很强大,他能建核电站,能建规模很大、功率很高的水电站,因为他有许多关于这方面的科技知识,但仅仅这些知识对人类的存在就是真理吗?显然不是,只有当这种技术的后果呈现在人类面前,被人类充分意识到,人类才看到自然向我们敞开的完整真理,黑格尔说:“真理是整体的”就有这个意思。“改造自然”是科技文明的一个基本观...
A.
对抗扭转撞击
B.
抗衡阻遏撞击
C.
对抗阻遏碰撞
D.
抗衡扭转碰撞
【单选题】若a,b是方程f(x)=0的两个相异的实根,f(x)在[a,b]上连续,且在(a,b)内可导,则方程f’(x)=0在(a,b)内().
A.
只有一个根
B.
至少有一个根
C.
没有根
D.
以上结论都不对
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