题目内容

A．Husband and wife.B．Employer and employee.C．Good friends.D．Business associates.

A. Husband and wife.
B. Employer and employee.
C. Good friends.
D. Business associates.

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A．At the post office.B．In a shop.C．At the bank.D．In a restaurant.

At the post office.
B. In a shop.
C. At the bank.
D. In a restaurant.

为明确诊断，首选的检查是

A. 心电图
B. 胃镜
C. 食管钡剂透视
D. 超声心动图
E. 肝、胆、脾超声

A．At nine o'clock.B．At twelve o'clock.C．At one o'clock.D．At two o'clock.

At nine o'clock.
B. At twelve o'clock.
C. At one o'clock.
D. At two o'clock.

五味子的有效成分