听力原文:W: Have you ever looked really closely at the snowflake?
M: Sure. But they usually melt too fast for me to get a close look. Why do you ask?
W: I'm just curious. I was reading an article about the formation of snowflakes and I realized that I had never paid much attention to them before.
M: Well, there's a big variety, isn't there?
W: Yeah. But they all have one of three basic forms, hexagonal columns, hexagonal plates, and branching star-shaped form.
M: I wonder why the forms are different. Maybe because ice starts to form. on dust particles with different shapes.
W: Well, I thought it might have something to do with the Water saturation of the air, but we were both wrong. The author of this article did extensive research and concluded that the shape of snow crystals is largely controlled by the temperature of the air. For example, the feathery star-shaped snowflake that everyone thinks is typical occurs only at a specific temperature.
M: Doesn't the relative humidity have anything to do with the shapes?
W: Apparently not. The effective super-saturation is simply to alter growth rate. The greater use the saturation, the faster the snowflakes form.
M: Mm. next time it snows, I'll make a point of taking a closer look.
Why has the woman brought up the subject of snowflakes?
A.She has never seen snow before.
B.She is conducting research on snow.
C.She wants to make artificial snow.
D.She has been reading about snow.
第1题
【73-74】 因含有配伍禁忌重要而不宜使用的药组()。
A.血府逐瘀丸与妇科千金片
B.天王补心丹与朱砂定神丸
C.祛痰止咳颗粒与镇咳宁胶囊
D.补中益气丸与桂附地黄丸
E.附子理中丸与四神丸
第2题
A.血府逐瘀丸与妇科千金片
B.天王补心丹与朱砂安神丸
C.祛痰止咳颗粒与镇咳宁胶囊
D.补中益气丸与桂附地黄丸
E.附子理中丸与四神丸
第4题
【73-74】 因含有配伍禁忌重要而不宜使用的药组()。
A.血府逐瘀丸与妇科千金片
B.天王补心丹与朱砂定神丸
C.祛痰止咳颗粒与镇咳宁胶囊
D.补中益气丸与桂附地黄丸
E.附子理中丸与四神丸
第6题
A.血府逐瘀丸与妇科千金片
B.天王补心丹与朱砂安神丸
C.祛痰止咳颗粒与镇咳宁胶囊
D.补中益气丸与桂附地黄丸
E.附子理中丸与四神丸
第7题
主治胸中血瘀所致心悸、失眠的方剂的是
A.酸枣仁汤
B.清营汤
C.朱砂安神丸
D.天王补心丹
E.血府逐瘀汤
第8题
主治胸中血淤所致心悸,失眠的方剂的是
A、酸枣仁汤
B、清营汤
C、朱砂安神丸
D、天王补心丹
E、血府逐瘀汤
第9题
因配伍禁忌而不宣合用的药组是A.川贝枇杷露与天麻丸
B.附子理中丸与参茸卫生丸
C.七厘散与血府逐瘀丸
D.当归补血汤与牵正散
E.牛黄解毒片与附子理中丸
因证候禁忌而不宜合用的药组是A.川贝枇杷露与天麻丸
B.附子理中丸与参茸卫生丸
C.七厘散与血府逐瘀丸
D.当归补血汤与牵正散
E.牛黄解毒片与附子理中丸
请帮忙给出每个问题的正确答案和分析,谢谢!
为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!