世界上第一台计算机是________年在美国研制成功的,该机命名为ENIAC。
A.1956
B.1945
C.1940
D.1946
参考答案:D
A few minutes earlier, and you would have seen the NBA star. But you ________.[ ]
A.didn't come
B.don't come
C.haven't come
D.won't come
鼻部硬性 * * 状瘤来自()。
A.鼻腔黏膜上皮
B.鼻旁窦黏膜上皮
C.鼻前庭或鼻中隔前部皮肤
D.鼻中隔黏膜上皮
E.鼻咽部黏膜上皮