[单选题]In our contemporary culture,the prospect of communicating with--or even looking at--a stranger is virtually unbearable.Everyone around us seems to agree by the way they fiddle with their phones,even without a 1 underground.It's a sad reality--our desire to avoid interacting with other human beings--because there's 2 to be gained from talking to the stranger standing by you.But you wouldn't know it,3 into your phone.This universal armor sends the 4:"Please don't approach me."What is it that makes us feel we need to hide 5 our screens?One answer is fear,according to Jon Wortmann,executive mental coach.We fear rejection,or that our innocent social advances will be 6 as"creepy,".We fear we'll be 7.We fear we'll be disruptive.Strangers are inherently 8 to us,so we are more likely to feel 9 when communicating with them compared with our friends and acquaintances.To avoid this anxiety,we 10 to our phones."Phones become our security blanket,"Wortmann says."They are our happy glasses that protect us from what we perceive is going to be more 11.”But once we rip off the bandaid,tuck our smartphones in our pockets and look up,it doesn't 12 so bad.In one 2011 experiment,behavioral scientists Nicholas Epley and Juliana Schroeder asked commuters to do the unthinkable:Start a 13.They had Chicago train commuters talk to their fellow 14."When Dr.Epley and Ms.Schroeder asked other people in the same train station to 15 how they would feel after talking to a stranger,the commuters thought their 16 would be more pleasant if they sat on their own,"the New York Times summarizes.Though the participants didn't expect a positive experience,after they 17 with the experiment,"not a single person reported having been snubbed."18,these commutes were reportedly more enjoyable compared with those sans communication,which makes absolute sense,19 human beings thrive off of social connections.It's that 20:Talking to strangers can make you feel connected.19选？
A.unless
B.since
C.if
D.whereas

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[单项选择]One of the solutions to the more and more urgent problem of sea pollution is to produce ships which do not pollute（）
A. 海水污染问题的解决更加的迫切，原因之一就是船只的生产带来大量的污染。
B. 越来越严重的海水污染问题的解决方案之一是制造一些排放物无污染的船只。
C. 解决越来越迫切的海水污染问题的办法是生产一种不污染的船舶。
D. 海水污染已经成为一个越来越迫切的问题，解决方案之一是研制出不产生污染的船舶。

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[多项选择]可出现少量Aschoff小体的病变是
A. 风湿性心内膜炎
B. 风湿性心肌炎
C. 风湿性心外膜炎
D. 风湿性关节炎

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[判断题](　　)滴药后须轻轻地抚揉,压迫耳屏,使药液进入中耳腔,保持原位 1 分钟后,再点另一只耳。
A.正确
B.错误

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[单选题]下列溶液中，适合治疗等渗性缺水的是
A.平衡盐溶液;
B.5%葡萄糖液;
C.0.45%氯化钠液;
D.10%葡萄糖液;
E.3%氯化钠液;

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[单选题]行政执法人员当场作出的行政处罚决定，必须报所属行政机关（）。
A.审批
B.备案
C.批准
D.审核

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[判断题]粘合纺纱是将短纤维条子用水溶性粘合剂粘合、烘干成纱。

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[判断题]保证膨胀螺栓与墙体的充分固定是三角架安装的重要环节。
A.正确
B.错误