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【简答题】
I am an e-mail user.1. When I first started to use the e-mail system I used to read all my e-mail. I didn't have much mail. I was very excited about receiving any e-mail. I gave my friends my e-mail address. Soon I had more mail than I wanted. Some of the mail was junk mail ( 垃圾邮件 ). I was worried. I didn't want my mail to control me. 2. I've tried some methods to help me get control of my mail. First, I check my mail at the same time every day.3. Also I try to allow myself only 15-20 minutes every day to process my e-mail. This doesn't always work, but I try. Sometimes I save the messages. Sometimes I just read them, maybe answer a few, and then delete them. Sometimes I'm not at all interested in a message, so I don't even open it. I delete it right away. 4. This is very much the way I go through the mail that the postal service delivers to my home.
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举一反三
【简答题】Console.WriteLine(!(1 > 0));//用逻辑非对条件表达式取反
【单选题】熔断器的主要作用是什么?
A.
短路保护
B.
过载保护
C.
失压保护
D.
欠压保护
【单选题】He (bullies) smaller boys into doing things for him.
A.
灌木
B.
公牛
C.
欺侮;胁迫;恃强凌弱者
【单选题】熔断器的主要作用是( )。
A.
控制行程
B.
控制速度
C.
短路或严重过载
D.
弱磁保护
【单选题】If big sums are to be spent on cleaning up environmental disasters, it is better to spend them on unglamorous but ______ problems such as unsanitary water in Third World countries.
A.
futile
B.
ephemeral
C.
pressing
D.
controversial
【单选题】男性,52岁,4年来因心律失常,长期用乙胺碘呋酮,近期出现消瘦、便频、手抖,临床诊断为碘甲亢。下述哪项描述是错误的
A.
停服含碘制剂后数月可自行恢复正常
B.
极少数病人于撤碘后,甲亢症状加重
C.
同位素不适于本型甲亢的治疗
D.
抗甲状腺药物治疗效果好
E.
以上都是不对
【单选题】航行中接送引航员,为适应引航船或拖船的并靠,应______,在引航员乘梯上下船过程中,应________。
A.
保持船 首迎 风;保持对地静止
B.
保持船 尾迎 风;保持对水静止
C.
将 引 航 员 梯 或 舷 梯 放 在 上 风 舷侧 ;保持航向和航速不变
D.
将 引 航 员 梯 或 舷 梯 放 在下风 舷侧 ;保持航向和航速不变
【简答题】熔断器的主要作用是( )。
【单选题】航行中接送引航员,为适应引航员或拖船的并靠,应__,在引航员乘梯上下船过程中,应__。
A.
保持船首迎风/保持对地静止
B.
保持船尾迎风/保持对水静止
C.
将引航员梯或舷梯放在上风侧/保持航向和船速不变
D.
将引航员梯或舷梯放在下风侧/保持航向和航速不变
【简答题】圆内接正七边形的画法,圆内接正八边形的画法,请同学上传两张图片。
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