The heating system of our apartment broke down so I made a ______ call to the communit
A.discussion
B.complaint
C.praise
- · 有8位网友选择 A,占比66.67%
- · 有2位网友选择 C,占比16.67%
- · 有2位网友选择 B,占比16.67%
A.discussion
B.complaint
C.praise
The heating system has recently been______to make it more efficient.
A.modified
B.changed
C.corrected
D.replaced
Our workers have been checking the heating system since you called us. I()you it will perform. well soon.
A.argue
B. affect
C. assure
The heating system, which adopts the newest technique, has an ______ temperature control.
A.automobile
B.auxiliary
C.available
D.automatic
The heating system has recently been ______ to make it more efficient.
A.modified
B.amended
C.altered
D.changed
What is broken?
A.A mobile phone
B.A window
C.An air conditioning system
D.A heating system
(25)
A.Though sunshine is free, we still need to purchase fuel to operate a solar heating system.
B.We need to purchase a solar system before we can use the sunshine.
C.If we want to use sunshine for the solar heating system, we must buy fuel first.
D.It's not necessary to buy fuel to run a solar heating system.
What's the most popular heating system according to the engineer?
A.Every room has a heater.
B.The Central room has a heater.
C.A heat chamber heats air and passes the warm air through ducts and openings into rooms.
D.The rooms are installed with blowers or convection.
How long has it lasted since the heating system stopped working?
A.About two days
B.Nearly seven days
C.About four months
D.Almost fourteen days
A.efficiently
B.efficiency
C.efficient
D.more efficiently
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