单项选择题

M. This truck looks like what I need but I’m worried about maintenance. For us it’ll have to operate for long periods of time in very cold temperatures.
W: We have several models that are especially adaptive for extreme conditions. Would you like to see them
What is the relationship between these two speakers（）

A. Operator and farmer.
B. Assistant and client.
C. Customer and saleswoman.
D. Repairman and customer.

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单项选择题

What does the man think about overseas railways（）

A. They will be standardized.
B. They provide poor service.
C. They will be replaced very soon.
D. They lose a great deal of money.

单项选择题

What has contributed to Wilma Subra’s achievement according to the speaker（）

A. Her impressive influence among members of some famous educational institutions.
B. Her excellent communication ability through public speaking.
C. Her support from many different people.
D. Her lifelong commitment to both domestic and global issues.