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【简答题】
A．慢性规律性的上腹痛 B．无规律性的上腹痛 C．右上腹绞痛 D．左上腹剧痛 E．皮肤黏膜出血 胆道感染，常伴有( ) A． B． C． D． E．
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【单选题】Skimming is a very useful technique that will allow you to read selectively, that is, to read what is important and skip what is not on your immediate purpose. Now skim the passage above and choose th...
A.
the role of sales
B.
the role of marketing
C.
a key focus area of marketing
D.
not only the role of marketing but a key focus area of it