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【判断题】
由于构件发生的变形是小变形,所以可以忽略不计。
A.
正确
B.
错误
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参考答案:
举一反三
【单选题】下面叙述中正确的是( )。
A.
计算机文化以计算机为核心
B.
计算机文化与计算机密不可分
C.
计算机和其他人类发明的工具一样,它的使用没有改变人类传统的习惯思维
D.
计算机文化只对计算机工作者有作用
【单选题】The postman ______ your letters into my letter-box.
A.
is always putting
B.
is always put
C.
are always putting
D.
are always put
【单选题】下列叙述不正确的是 ( )
A.
钢铁在干燥的空气中不易被腐蚀
B.
可以用船尾连锌块的方法来保护船身
C.
金属的电化学腐蚀比化学腐蚀更普遍
D.
用铝质铆钉铆接铁板,铁板易被腐蚀
【单选题】The postman_____________your letters into my letter-box, it is annoying
A.
puts
B.
put
C.
is always putting
D.
has always put
【多选题】关于痱子,描述正确的是( )
A.
针尖至粟粒大的红色丘疹疱疹,密集成片
B.
小米粒或绿豆大小,周围发红的灰色小疱疹或红色丘疹
C.
好发于前额、颈、胸、腰、背肘窝、腘窝处
D.
有痒、刺痛、灼热感
【单选题】下面关于头晕的描述正确、完整的是()。
A.
头晕是因周围神经异常、直立性低血压、静脉窦反应过度、心律失常、中枢神经病变等引起的昏沉、头飘忽、头部难以名状的不适感,根据症状可分为眩晕、晕倒前头部轻飘感、不平衡感、眼部头晕、其他还有精神及心源性头晕,伴焦虑、抑郁。治疗主要针对病因选择药物
B.
头晕是因周围神经异常引起的昏睡、头飘忽,根据症状可分为眩晕、晕倒前头部轻飘感。治疗主要针对病因选择药物
C.
头晕是因静脉窦反应过度、心律失常引起的昏沉,根据症状可分为不平衡感、心源性头晕。治疗主要针对病因选择药物
D.
头晕是因高血压、直立性低血压引起的头部难以名状的不适感,根据症状可分为眩晕、心源性头晕。治疗主要针对病因选择药物
E.
头晕是因中枢神经病变引起的眩晕,治疗主要靠神经外科手术
【单选题】Training a dog to be a watchdog often reduces unexpected results. Some dogs quickly learn the difference between unwanted people and friends. This is because their masters welcome friends into their...
A.
Training a dog to be a watchdog often reduces unexpected results.
B.
Some dogs quickly learn the difference between unwanted people and friends.
C.
Some dogs will always attack the postman who comes to deliver letters.
D.
The dog thinks the postman is someone not wanted, but keeps coming back anyway.
【单选题】下列叙述中正确的是 _____ 。
A.
同一张软磁盘每次使用前必须进行格式化
B.
在 Windows7 中,不允许使用长文件名
C.
在 Windows7 中,文件删除后一定不能恢复
D.
在计算机的外存储器中,数据、程序以文件的形式存储
E.
以上答案都不对
【单选题】Read the passage and choose the correct answer.Jimmy has been a postman for the last ten years. He loves to talk to his wife in the evenings about the people he delivers to. He tells her about Mrs. Ma...
A.
saw her through the front door
B.
went through the window
C.
went through the living room window
D.
saw her through the living room window
【单选题】The postman _____ your letters into my letter box.
A.
always puts
B.
always put
C.
has always put
D.
is always putting
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