单项选择题

Questions 19 to 22 are based on the conversation you have just heard.

A．It makes the workers excited.
B．It helps to reduce workers’ complaint.
C．It makes workers spend less time having their dinner.
D．It might make the production increase.
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单项选择题
A．Tsunamis are caused by underwater earthquakes.B．Earthquakes of about magnitude 6.75 on the Richter scale will cause tsunamis.C．Nearly 90 percent of underwater earthquakes cause tsunamis.D．Not all underwater earthquakes cause tsunamis.
A．Tsunamis are caused by underwater earthquakes.
B．Earthquakes of about magnitude 6.75 on the Richter scale will cause tsunamis.
C．Nearly 90 percent of underwater earthquakes cause tsunamis.
D．Not all underwater earthquakes cause tsunamis.
单项选择题
A．She has changed her schedule.B．She works less than she used to.C．She is going to ask for a leave on Wednesday.D．She is going to have her vacation on Tuesday.
A．She has changed her schedule.
B．She works less than she used to.
C．She is going to ask for a leave on Wednesday.
D．She is going to have her vacation on Tuesday.
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