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【单选题】
细长压杆的 ，则其临界应力越大。A.
（ A ）弹性模量 E 越大或柔度 λ 越小；
B.
（ B ）弹性模量 E 越大或柔度 λ 越大；
C.
（ C ）弹性模量 E 越小或柔度 λ 越大；
D.
（ D ）弹性模量 E 越小或柔度 λ 越小。
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【单选题】People ______ that vertical flight transports would carry millions of passengers as do the airliners of today.
A.
convinced
B.
anticipated
C.
resolved
D.
assured
【单选题】It was reported that an agreement ____ between the two companies and that they would carry out a project together.
A.
reached
B.
had been reached
C.
was reached
D.
has been reached
【单选题】Why was the passenger jet forced to land at Halifax, Canada?
A.
Some passengers would get off the plane in Canada.
B.
There was something wrong about the plane and it could not fly again.
C.
Because there were criminals on the jet plane.
D.
Because it had been thought that the jet had been hi-jacked.
【单选题】I am afraid to sleep. I have been afraid to sleep for the last few weeks. I am so tired that, finally, I do sleep, but only for a few minutes. It is not a bad dream that wakes me it is the reality I t...
A.
refused to speak to her
B.
was pleasant and attractive
C.
was selling skirts and ribbons
D.
recognized her immediately
【单选题】--Did you sleep well yesterday? -- Never _____. I fell into a deep sleep the moment I went to the bed.
A.
bad
B.
worse
C.
better
D.
best
【单选题】I wanted nothing but _____,_____ I stayed up all the night.
A.
sleep; for
B.
sleep; so
C.
to sleep; so
D.
to sleep; for
【单选题】I like ________ a little longer ________ weekends. [ ]
A.
sleep, on
B.
to sleep, on
C.
sleep, in
D.
to sleep, in
【单选题】People______ that vertical flight transports would carry millions of passengers as do the airliners of today.
A.
comprehended
B.
anticipated
C.
revealed
D.
asserted
【单选题】What options would they offer to passengers?
A.
Hot beverages
B.
Steamed buns
C.
Light meals
D.
All of the above
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