breaks
has broken
were broken
had been broken
第1题:
The water level in the gauge glass when a boiler is operating is _____ when the boiler is shut down.
A.lower than
B.higher than
C.below
D.equal to
第2题:
His bad health is a great disadvantage to him when he looks for a job.(英译汉)
第3题:
A. Seen
B. Seeing
C. To see
D. See
第4题:
The water level showing in a boiler water gauge glass is usually ( ) duringworking.
A.higher than the actual drum water level
B.equal to the actual drum water level
C.increasing due to steam condensation in the glass
D.lower than actual drum wafer level
第5题:
A.two glass of waters
B.two glass of water
C.two glasses of waters
D.two glasses of water
第6题:
--- Are you ready to order?
--- ___________
A. It looks good, thanks.
B. Yes, so am I.
C. Could I have a glass of
wine please?
第7题:
_____, water turns into ice.
A、When freezing
B、When frozen
C、When it has been frozen
D、When freezes to it
第8题:
A、round
B、dozen
C、bottle
D、glass
第9题:
The effect that exhaust gas recirculation can reduce NOX formation is partly due to a reduction of the()concentration in the combustion zone and partly due to the content of water and carbon dioxide in the exhaust gas.
A.Oxygen
B.Nitrogen
C.Sulphur
D.Freon
第10题:
7.— ________ .is your pencil case?
—It’s blue and white.
A. How
B. What color
C.What
D. When