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【单选题】
—May I go out and play games? —No, you _____. You've got a lot of work to do. [ ]A.
can't
B.
needn't
C.
wouldn't
D.
don't
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【简答题】继电器是一种用较( )的电流去控制较( )电流的电子控制器件,继电器线圈 通 ( )电流。其实质就是利用 电磁铁来控制工作电路的一种( )。
【简答题】看图填空。 1. This is the ______________. 2. This is the ______________. 3. This is the ______________. 4. This is the ______________. 5. This is the ______________.
【单选题】Which is smart casual dress code in the U.K.?
A.
A clean, ironed polo shirt with tie and pressed khakis.
B.
Jeans with a pair of tennis shoes would be a good option.
C.
Blouses or a nice sweater with dressy high heels.
D.
Khakis or dress trousers with flats and matchign accessories.
【简答题】听音，涂色。 1. 2. 3. 4.
【简答题】继电器是一种利用()电流来控制()电流电路的电磁开关
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