【单选题】机械零件经冷拔、冷挤压后,则 ________ ;
【单选题】在下面的叙述中那种说法不正确?
A.
Rh血型不合的输血,可产生危及生命的溶血性输血反应
【单选题】LPL在发挥其酶活性时所必需的辅助因子是
【单选题】I used to be terrified of _____ an airplane. [ ]
【单选题】If I were a bird, I ______ in the blue sky. [ ]
【单选题】试分析下面程序段的时间复杂度。 i=1; while(i<=n) i=i*3;
【单选题】Sarah Brightman, ________ will fly to space in 2015, is the first woman to fly there in the field of music.
【单选题】It is a delight to fly at the Pole because there______.
A.
planes fly higher than at the equator
B.
the eyes can reach about 4,000 meters
C.
planes are clear of bad weather
D.
planes fly more quickly than at the equator
【单选题】I _______ home to China next week. [ ]
【简答题】A.The direction to fly in. B.The distance to fly. C.The height to fly. D.The kind of food to find.