市场需求不确定性强、供应短缺的品种（）
A．加大降价力度
B．适当提高价格
C．少降价格
D．维持价格
E．少降或维持价格
参考答案：B
十二指肠溃疡急性穿孔最重要的临床表现是（）
A．板状腹
B．腹腔积液
C．阵发性腹痛并肠鸣音亢进
D．腹胀
E．墨菲征阳性
A. You need to go to Brazil to do a translation course. B. Your Portuguese is not good enough for translating this contract. C. Our new secretary can type the contract in Portuguese for you. D. The secretary might be able to help you with the translation.
