更多"[单选题]Nowadays many teenagers often "的相关试题:
[单选题]Lubrication often has to perform many duties in any situation its main function of reducing friction.
A.except
B.other than
C.unless
D.in addition to
[单选题] Refrigeration machinery is often surveyed before loading reefer cargo．This survey is usually performed by the ______．
A.MSA
B.CCS
C.CCIQ
D.Local port authority
[单选题] An LWT anchor often has difficulty tripping in ______．
A.Sand
B.Soft soil
C.Stiff clay
D.Heterogeneous soil
[单选题] When steering by autopilot how often should manual steering be checked ?
A. Every day
B. When time allows
C. At least once a watch
D. No checking is necessary
[单选题] People often end their letters with "Yours _( )_ "
A. truly
B. true
C. very
D. real
[单选题]In motorships,an exhaust gas boiler is often used to some of the heat carried in the exhaust gases from the main engine
A.finish
B.mnake
C.recover
D.take
[单选题] What often happens when using echo-sounder at river estuary where a layer of fresh water lies on the top of denser salt water?
A.A scattering layer appears.
B.Echo sounder stops working.
C.shallow water appears.
D.Nothing abnormal happens.
[单选题]between the holds,often on a platform which can be rotated through 360,the deck crane provides an immediately operational unit requiring only one man to operate it.
A.Positioning
B.Positioned
C.To position
D.Which positioned
[单选题] Tony often _( )_ with his wife about money.
A. argues
B. interviews
C. embarrasses
D. improves
[单选题]Drinking cola often ______ our cinema experience more enjoyable.
A.made
B.makes
C.has made
D.make
[单选题] We often __( )_ the happy time we spent at your home last summer.
A. recall
B. remind
C. present
D. provide
[单选题]We often ______ ourselves by playing cards while we are on the train.
A.accomplish
B.attach
C.avoid
D.amuse
[单选题]常装磁堵为（ ）Often with magnetic wall for:
A.唯一的主磁堵. The only main magnetic plug
B.内、外齿轮箱磁堵和主磁堵. Internal and external magnetic gear box wall and the main magnetic plug
C.在外部齿轮箱在主磁堵. In the external gear box in the main magnetic plug
[单选题] Do you often _____ until tomorrow what you should do today?
A. put away
B. put down
C. put up
D. put off
[单选题]This machine___out of order very often,but now it works well.
A.was used to be
B.was used be
C.used to be
D.used be
[单选题] He often thinks of _____ he can do for the country.
A. what
B. how
C. that
D. which
[单选题] The weather is often ______ in a high-pressure area.
A. fine
B. cloudy
C. rainy
D. windy
