The Boeing Company has completed the Power On sequence for the first 787 Dreamliner, marking the completion of the next major milestone on the path to first flight later this year. Power On means:
A.
to put swich on
B.
a complex series of tasks and tests that bring electrical power onto the airplane and begin to exercise the use of the electrical systems
C.
the power is above the plane
D.
the engines are running
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【简答题】Directions: There are 15 blanks in the following passage. For each blank there are for choices marked A ,B ,C and D. You should decide on the best choice and write the corresponding letter on the Answ...
【简答题】Questions 11 to 15 are based on the following passage.
Scratchy throats, stuffy noses and body aches all spell misery, but being able to tell if the cause is a cold or flu (流感) may make a difference ...
【单选题】Questions 11 to 15 are based on the following passage.
Scratchy throats, stuffy noses and body aches all spell misery, but being able to tell if the cause is a cold or flu (流感) may make a difference ...
A.
one doesn’t need to take any medicine if he has a cold or the flu
B.
aspirin should not be included in over-the-counter medicines for the flu
C.
delayed treatment of the flu will harm the liver and central nervous system
D.
over-the-counter drugs can be taken to ease the misery caused by a cold or the flu