单项选择题

Questions 22 to 25 are based on the conversation you have just heard.

A．They organized online conferences.
B．They organized staff meetings.
C．They trained the staff members.
D．They invested in new technology.
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单项选择题
A．Gas can be used in liquid and gas form.B．It will provide gas through long pipelines.C．Gas is frozen into liquid and transported.D．It will bring huge profits to the researchers.
A．Gas can be used in liquid and gas form.
B．It will provide gas through long pipelines.
C．Gas is frozen into liquid and transported.
D．It will bring huge profits to the researchers.
单项选择题
A．A huge budget.B．Places to practice their skills.C．Chances of success.D．A big challenge.
A．A huge budget.
B．Places to practice their skills.
C．Chances of success.
D．A big challenge.
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