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【单选题】
空调怠速继电器的作用是()A.
A保护空调压缩机
B.
B当发动机转速低到某一低转速时,使空调压缩机停止运转
C.
C避免空调电路因大电流而烧坏
D.
D控制发动怠速
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【单选题】The thing you wash your hair with must be_____
A.
used with care
B.
very strong
C.
extremely mild
D.
fashionable
【单选题】You ______ wash your hands before meals. It is good for your health.
A.
may
B.
can
C.
must
【单选题】You must wash your hands when preparing food to______passing on disease to your family.
A.
worry about
B.
protect against
C.
pay attention to
D.
guard against
【单选题】The thing you wash your hair with must be________． 查看材料
A.
used with care
B.
very strong
C.
extremely mild
D.
fashionable
【单选题】“You can have some cakes, ______ you must wash your hands first.” Mum says.
A.
and
B.
or
C.
but
D.
so
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