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问题 选择题

在同一张地图上，图上距离与实际距离有（　　）关系．

A．正比例

B．反比例

C．不成比例

D．不知道

答案

图上距离：实际距离=比例尺（一定），

是对应的比值一定，所以图上距离与实际距离成正比例关系；

故选：A．

填空题

Play is very important for humans from birth to death. Play is not meant to be just for children. It is a form of (1) that can tap into your creativity, and can allow you the chance to find your inner child and the inner child of others. I have collected the (2) of play here.
Play can stimulate you (3) . It can go against all the rules, and change the same (4) . Walt Disney was devoted to play, and his willingness to (5) changed the world of entertainment. The next time you are stuck in a (6) way of life, puI1 out a box of color pencils, modeling clay, glue and scissors, and (7) and break free. You will be amazed at the way your thinking (8) .
Playing can bring greater joy into your life. What do you think the world would be like if (9) each day in play I bet just asking you this question has (10) . Play creates laughter, joy, entertainment, (11) . Starting today, try to get 30 minutes each day to engage in some form of play, and (12) rise!
Play is known (13) . Studies show that, as humans, play is part of our nature. We have the need to play because it is instinctive and (14) . With regular play, our problem-solving and (15) will be in much better shape to handle this complex world, and we are much more likely to choose (16) as they arise. It creates laughter and freedom that can instantly reduce stress and (17) to our daily living.
Play can (18) , curiosity, and creativity. Research shows that play is both a "hands-on" and "minds-on" learning process. It produces a deeper, (19) of the world and its possibilities. We begin giving meaning to life through story making, and playing out (20) .
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单项选择题

女性，32岁，患风湿性心脏病二尖瓣狭窄合并关闭不全多年，长期服用地高辛维持量0.25mg/d，近日感冒后呼吸困难加重，改用地高辛0.5mg/d，共8天，入院心电出现房速伴2：1房室传导阻滞，应采取的措施是（）

A.地高辛改为0.25mg，1日1次

B.增加地高辛剂量

C.维持地高辛用量，静脉滴注氯化钾

D.停用地高辛，加用苯妥英钠口服

E.减少地高辛用量，0.125mg/d
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