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【单选题】女，55岁，诊断风湿性二尖瓣狭窄26年，内科保守治疗，近半年症状有所加重。超声心动图检查提示：左房明显扩大，二尖瓣开放受限，交界粘连，瓣口面积1.0cm，瓣下结构挛缩、钙化，此时应建议病人（）
A.
继续内科药物治疗
B.
二尖瓣闭式扩张术
C.
二尖瓣直视成形术
D.
二尖瓣替换术
E.
经皮二尖瓣球囊扩张术
【简答题】阅读理解。 Do you often play hide-and-seek (捉迷藏) with others? Most children often play this and love to play it. Hide-and-seek is a very old . Maybe your father and mother play it. Maybe your gran...
【简答题】Asian stereotypes are everywhere. More often than not, if you see an Asian American depicted on the screen, you’ll also see an Asian stereotype. These stereotypes are unrealistic and offensive, but un...
【判断题】Secondary data provide good starting points and often help to define problems and research objectives, though most companies must also collect primary data.
A.
正确
B.
错误
【单选题】女性，55岁，诊断风湿性二尖瓣狭窄26年，内科保守治疗，近半年症状有所加重。超声心动图检查提示：左房明显扩大，二尖瓣开放受限，交界粘连，瓣口面积1．0cm 2 ，瓣下结构挛缩、钙化，此时应建议病人（）
A.
继续内科药物治疗
B.
二尖瓣闭式扩张术
C.
二尖瓣直视成形术
D.
二尖瓣替换术
E.
经皮二尖瓣球囊扩张术
【单选题】(Para. 4) But today, do we still dress exclusively for comfort? Or do we also dress for fashion? Fashionistas – followers of the latest fashions – choose to wear the season’s fabulous new designs and ...
A.
No, because there are many other reasons to choose the clothes we wear.
B.
Yes, but it’s especially important in cold countries.
C.
No, because the fashion shows influence our choice of clothes.
D.
No, because most people are fashionistas.
【简答题】将下面三段话翻译成汉语,并体会专业英语的特点。 Polymer dispersions can also often be precipitated and purified by pouring them into methanol, by adding methanol, or by cooling the dispersion in some kind of a cooling mixtur...
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