单项选择题

A．They help people save time on housework.
B．They go into the garbage heap.
C．They are harmful to the environment.
D．They make products more expensive.
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单项选择题
A．Acquiring a true sense of responsibility.B．Focusing on the desire to fulfill.C．Getting ready for the worst.D．Imagining objects to obtain and process.
A．Acquiring a true sense of responsibility.
B．Focusing on the desire to fulfill.
C．Getting ready for the worst.
D．Imagining objects to obtain and process.
单项选择题
A．They moved in a cottage by the sea.B．They lived in a cottage by the river.C．They went to see their friends abroad.D．They got annoyed with each other.
A．They moved in a cottage by the sea.
B．They lived in a cottage by the river.
C．They went to see their friends abroad.
D．They got annoyed with each other.
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