下列词语书写全部正确的一项是( )
A.苦涩屋檐萧索落蕊
B.幽深混钝落寞平仄
C.训鸽细腻凋谢意境
D.点缀颓费赏玩蟋蟀
答案:A
B钝—沌C训—驯 D颓费——颓废
— A number of people _______ killed by the terrorists at the Urumqi train station.
— _______ terrible it is!
A.were; How
B.was; How
C.were; What
D.was; What
长春碱的抗癌作用机制是
A.阻碍DNA合成B.与DNA联结而破坏DNA的结构和功能C.与DNA结合而阻碍RNA转录D.阻碍纺锤丝形成E.阻碍蛋白质合成