单项选择题

A．Because he was a great inventor.
B．Because he knew a lot about techniques.
C．Because he talked about the product itself simply.
D．Because he emphasized the advantages of using a new product.
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单项选择题
A．Calculators.B．Microwaves.C．Computers.D．Electroscopes (doctor’s instrument).
A．Calculators.
B．Microwaves.
C．Computers.
D．Electroscopes (doctor’s instrument).
单项选择题
A．She gets it from the library.B．She subscribes to it at the post office.C．She gets it at her office.D．She gets it from a book club.
A．She gets it from the library.
B．She subscribes to it at the post office.
C．She gets it at her office.
D．She gets it from a book club.
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