单项选择题

A．It can help people to adjust their breathing.
B．It may help middle-aged people to lose weight.
C．It can burn calories like running on the field.
D．It may replace the role of doctors.
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单项选择题
A．She doesn’t know how to send e-mails.B．She didn’t receive the important e-mails.C．She lost her mails somewhere.D．She received a lot of junk mails.
A．She doesn’t know how to send e-mails.
B．She didn’t receive the important e-mails.
C．She lost her mails somewhere.
D．She received a lot of junk mails.
单项选择题
A．If the market goes down, you can buy in and hang on.B．If the market goes up, you can buy in and hang on.C．If the market keeps changing; you can buy in and hang on.D．If the market remains changeless, you can buy in and hang on.
A．If the market goes down, you can buy in and hang on.
B．If the market goes up, you can buy in and hang on.
C．If the market keeps changing; you can buy in and hang on.
D．If the market remains changeless, you can buy in and hang on.
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