单项选择题

Computers are beneficial because they ______.

A．eliminate price errors
B．give itemized printout to the customer
C．save time in the checkout lane and help control inventory
D．all of the above
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单项选择题
Dachshunds are funny in their ______.
A．shape
B．head
C．habit
D．mischief
单项选择题
Which of the following statements is NOT true
A．A dog needs to be small to be fond of joke.
B．It is better to let a dog know that he is funny.
C．Some dogs have a sense of humor while others haven't.
D．The merits of dogs outweigh their faults.
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