第6题: [单项选择]A. an official
B. a marketing researcher
C. a health products exporter
D. an agent for textiles
E. a trader for livestock and poultry
F. a clothing maker
G. a company’’s receptionist
H. a board member
参考答案:B 答案解析:Woman: The newly-developed product is called "Self-heater gloves". The gloves themselves control the
第7题: [单项选择]风心病二尖瓣关闭不全 A. 心率加快 B. 心肌肥厚 C. 心脏扩大 D. 有效血容量增加 E. 血容量重新分配 参考答案:C