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【多选题】
目前高清电视HDTV和扩展清晰度电视EDTV的宽是:A.
4：3
B.
16：9
C.
1.78
D.
1.33
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
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【单选题】男性，62岁，发现高血压12年，近4年出现胸骨后疼痛，诊断为原发性高血压、冠心病 (心绞痛型)，给予硝苯地平和β受体阻断药口服。1天前突然出现气急、咳嗽，咳泡沫样痰。检查：端坐呼吸，血压150/90mmHg，心率130次／分，房颤心律，双肺底湿性啰音，下肢无浮肿。 该患者目前的诊断应是
A.
全心力衰竭
B.
支气管哮喘
C.
急性左心力衰竭
D.
急性前壁心肌梗死
【简答题】W ei The W Hotel is among the city’s big-name luxury(奢华) hotels. Futuristic and fancy, the W ei’s setting is reminding you of a Lady Gaga video; perhaps that explains why the singer insisted o...
【简答题】表达式 ‘ab’ in ‘acbed’ 的值为
【单选题】听力原文：M: Can you help me with the bag, Sue? W: Sorry, my hands are full. What does Sue mean?
A.
Her hands are full.
B.
She wants the boy to help her.
C.
She can't help the boy carry the bag.
【单选题】听力原文：W：I'm going to attend an interim meeting but chances are that my hands are full. Could you give me a hand? M：It happens that I have some work of my own to hand in，but I guess I can take some time...
A.
He will be too busy to help the woman.
B.
He is not sure whether he can help the woman.
C.
He is supposed to know what he should do.
D.
He will help the woman.
【单选题】听力原文：W: I just found out the registration of the creative writing class is full. Now I have to wait another whole year to get in. M: Why don't you check back after the first week? Somebody might drop ...
A.
She should give up the class.
B.
She has to wait another time for registration.
C.
She can come back for registration a week later.
D.
She can come back to see if there is a chance after the first week.
【单选题】听力原文：W: I just found out the registration of the creative writing class is full. Now I have to wait another whole year to get in. M：Why don't you check back after the first week? Somebody might drop i...
A.
She can come back for registration a week later.
B.
She can come back to see if there is a chance after the first week.
C.
She has to wait another time for registration.
D.
She should give up the class.
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