更多"The first scientific air flight was"的相关试题:
[单项选择](Inventor) Elisha Graves Otis designed the first elevator (that it incorporated) anautomatic brake, which in turn (led to) the (development) of the skyscraper.
A. Inventor
B. that it incorporated
C. led to
D. development
[单项选择]Before the first non-stop flight made in 1949, it ______necessary for all planes to land for refueling.
A. would be
B. has been
C. had been
D. would have been
[单项选择]The (first) piloted balloon (flight) across the Atlantic Ocean (took) place (at) 1978.
A. first
B. flight
C. took
D. at
[单项选择](At a first), the scientific (method) may appear to be a (narrow) and restrictive way (of) gaining understanding.
A. At a first
B. method
C. narrow
D. of
[单项选择]There is a direct flight at 3: 00 or a flight at 7: 30 in the morning that ______ in Los Angeles.
A. stops by
B. stops in
C. stops over
D. stops up
[单项选择]How long is the flight
A. 2 hours, 40 minutes.
B. 2 hours, 14 minutes.
C. 2 hours, 4 minutes.
D. 2 hours, 44 minutes.
[单项选择]All scientific truth is tentative because
A. evidence is basically a value judgment.
B. evidence is basically an esthetic judgment.
C. evidence is basically a purposeful judgment.
D. evidence is basically a factual judgment.
