单项选择题

A．It must be the right height.
B．It must have several gears.
C．It must have good tires.
D．It must be the right weight.
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单项选择题
A．The barbecue has been canceled.B．The weather will probably be cool.C．The man will not be able to attend the barbecue.D．Casual dress will be appropriate.
A．The barbecue has been canceled.
B．The weather will probably be cool.
C．The man will not be able to attend the barbecue.
D．Casual dress will be appropriate.
单项选择题
A．So that they are protected from scratches by the crane’s talons.B．So that they aren’t exposed to infectious diseases.C．So that the chicks can be examined in a sterile environment.D．So that the chicks don’t become dependent on human being.
A．So that they are protected from scratches by the crane’s talons.
B．So that they aren’t exposed to infectious diseases.
C．So that the chicks can be examined in a sterile environment.
D．So that the chicks don’t become dependent on human being.
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