e used to 后加名词 表示习惯于
be used with 后加名词 表示联用
be used for 后家名词 表示用于.
be used at 从未听说过
个人认为 答案是C
呼吸设备是用于保护消防员免受烟雾的侵害
Breathing equipment is used (A to B with C for D at) protect
1个回答
相关问题
-
Firemen use the breathing equipment to breathe in （ ）places
-
May is going to make friends ____us.A.to B.with C.for D.and
-
The teacher is very helpful____us.A.to B.with C.for D.on
-
Tom is always very friendly___others.A.for B.with C.to D.at
-
（ ）It is safe ____you to stay at home.A.in B.for C.with D.of
-
What is wrong you?A.in B.with C.for D.at
-
Thanks () the beautiful gift A at B to C for D with
-
we write_ pencils and pens A.at B.to C.with D.for
-
ehat does the sea provide ----us A\of B\for c\with D\to
-
that house is ___ drawing.A.with B.for C.to D.on