更多"It is difficult ______ a world reco"的相关试题:
[单项选择]It is difficult ______ a world record and even more difficult to ______ it.
A. keeping, set
B. keep, set
C. set, keep
D. to set, keep
[单项选择]It is difficult （）a world record and even more difficult to （）it.
A. keeping, set
B. keep, set
C. set, keep
D. to set, keep
[单项选择]It is difficult ______a world record and even more difficult to ______it.
A. keeping, set
B. keep, set
C. set, keep
D. to set, keep
[单项选择]The president's fitful rule is seen to be even more de signed to serve the interests of people ______.
A. at a loss
B. at a stroke
C. at large
D. at hand
[单项选择]It is difficult to conceive how, even for those people well disposed to rule themselves, the attempt to achieve happiness should be rendered so______by one single curse, that of a bad form of government.
A. (A) laudatory
B. (B) ineffectual
C. (C) corrupt
D. (D) disorganized
E. (E) ill-tempered
[单项选择][A] even [B] indeed [e] still [D] moreover
[单项选择]It will be even more difficult to develop a vaccine because______.
A. most women are infected by a single variant of the HIV virus
B. the virus can duplicate itself into more genetic variants
C. it is difficult to monitor the activities of the viruses
D. technologies are not advanced now
[单项选择]An unauthorised biography is likely to attract more readers because______.
[单项选择]An unauthorized biography is likely to attract more readers because______.
[单项选择]Urban poverty and poor housing became more and more serious.
A. 郊区贫困化以及住房紧张问题日益严重。
B. 城市贫困化以及破旧的房子日益严重。
C. 城市贫困化以及住房紧张问题日益严重。
D. 都市贫困化以及住房紧张问题日益严重。
[单项选择]According to this passage, deep dream sleep is more likely to occur in ______.
A. flies
B. vulnerable birds
C. puppies
D. tigers
