单项选择题

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

A．They should not share the same space.
B．They should avoid touching each other.
C．They’d better have an injection for prevention.
D．They should wear the masks.
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单项选择题
From this passage, we know that the magnetic North Pole ______.
A．overlaps exactly on the geographic North Pole
B．is set according to the Earth’s magnetic field
C．moves along the Canadian Arctic
D．locates 90 degrees north latitude
单项选择题
A．Where the countries are.B．How to make a travel around the world.C．What he told about is quite true.D．How to find the black stone for cooking.
A．Where the countries are.
B．How to make a travel around the world.
C．What he told about is quite true.
D．How to find the black stone for cooking.
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